A fabric store sells pieces of material for $5 each. Ali bought 2 white pieces and 8 blue pieces. She also bought a pack of buttons for $3. The expression \(5\times(2 + 8) + 3\) gives the cost in dollars of Ali’s purchase. How can you describe the term (2 + 8) in words?

A hotel offers two different types of rooms. The expression k + 2f gives the number of beds in the hotel where k is the number of rooms with a king size bed and f is the number of rooms with 2 full size beds. What are the terms of the expression?

Meg paid $9 for 2 tuna sandwiches. At the same rate, how much does Meg pay for 8 tuna sandwiches?

Jan is saving for a skateboard. She has saved $30 already, which is 20% of the total price. How much does the skateboard cost?

It took Eduardo 8 hours to drive from Buffalo, NY, to New York City, a distance of about 400 miles. Find his average speed.

Write an expression that represents the value, in cents, of n nickels.