Angie has 12 feet if string. she will cut the string into equal lengths of 5 inches each. how much string will be left after she cuts as many of these lengths as possible?

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Given the net of the rectangular prism, what is its surface area?