Marty is at the clothing store and sees that the shirt he wants is 15% off. He knows that he can
use the expression c - 0.15c, where c is the cost
of the shirt, to find the discounted cost of the shirt
before tax. Determine which expressions are
equivalent to c -0.15c. Select Equivalent or Not
Equivalent for each expression.

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.