Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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Selected Response

  • Question 1 (request help)

    Zalmon walks \(\large\frac{3}{4}\) of a mile in \(\large\frac{3}{10}\) of an hour. What is his speed in miles per hour?
    • 0.225 miles per hour
    • 2.3 miles per hour
    • 2.5 miles per hour
    • 2.6 miles per hour
  • Question 2 (request help)

    Find the percent change from 70 to 56.
    • 20% decrease
    • 20% increase
    • 25% decrease
    • 25% increase
  • Question 3 (request help)

    The rainfall total two years ago was 10.2 inches. Last year’s total was 20% greater. What was last year’s rainfall total?
    • 8.16 inches
    • 11.22 inches
    • 12.24 inches
    • 20.4 inches
  • Question 4 (request help)

    A pair of basketball shoes was originally priced at $80, but was marked up 37.5%. What was the retail price of the shoes?
    • $50
    • $83
    • $110
    • $130
  • Question 5 (request help)

    The sales tax rate in Jan’s town is 7.5%. If she buys 3 lamps for $23.59 each and a sofa for $769.99, how much sales tax does she owe?
    • $58.85
    • $63.06
    • $67.26
    • $71.46
  • Question 6 (request help)

    The day after a national holiday, decorations were marked down 40%. Before the holiday, a patriotic banner cost $5.75. How much did the banner cost after the holiday?
    • $1.15
    • $2.30
    • $3.45
    • $8.05
  • Question 7 (request help)

    Dustin makes $2,330 each month and pays $840 for rent. To the nearest tenth of a percent, what percent of Dustin’s earnings are spent on rent?
    • 84%
    • 63.9%
    • 56.4%
    • 36.1%
  • Question 8 (request help)

    A scuba diver is positioned at -30 feet. How many feet will she have to rise to change her position to -12 feet?
    • -42 ft
    • -18 ft
    • 18 ft
    • 42 ft
  • Question 9 (request help)

    A bank offers an annual simple interest rate of 8% on home improvement loans. Tobias borrowed $17,000 over a period of 2 years. How much did he repay altogether?
    • $1360
    • $2720
    • $18360
    • $19720

Mini-Task

  • Question 10 (request help)

    The granola Summer buys used to cost $6.00 per pound, but it has been marked up 15%.

    a. How much did it cost Summer to buy 2.6 pounds of granola at the old price?
  • $    
  • Question 10 (request help)

    b. How much does it cost her to buy 2.6 pounds of granola at the new price?
  • $    
  • Question 10 (request help)

    c. Suppose Summer buys 3.5 pounds of granola. How much more does it cost at the new price than at the old price?
  • $    

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