Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys

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Grade 7 McGraw Hill Glencoe - Answer Keys

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Question 6 (request help)
Justify Conclusions MegaMart collects a sales tax equal to \(\frac{1}{16}\) of the retail price of each purchace. The tax is sent to the state government.
a. Is the amount of tax collected proportional to the cost of an item before tax is added? Explain.
- yes
- no

Question 6 (request help)
b. Is the amount of tax collected proportional to the cost of an item after tax has been added? Explain.
- yes
- no

Question 7 (request help)
Find the Error Blake ran laps around the gym. His times are shown in the table. Blake is trying to decide whether the number of laps is proportional to the time. Find his mistake and correct it.
- No
- yes

Question 8 (request help)
Persevere with Problems Determine whether the cost for ordering multiple items that will be delivered is sometimes, always,or never proportional. Explain your reasoning.

Question 9 (request help)
Model with Mathematics Give real-word examples of two similar situations in which one is a proportional relationship and the second one is nonproportional.