A dress that normally sells for $72 is on sale for$45. what is the percent decrease in the price

if a girl spends 2 hours playing volleyball everyday from august 30th to september 15th now many hours did she play?

Let S = {A, B, C, D} be some set of four elements of a vector space. Suppose that D = 2A + B + 3C and C = A - B. Is {A, B, D} linearly dependent? Explain.

1/5 divided by N equals 1/3

Isabelle is making lemonade for a party with 12 guests she wants to make equal servings that are least two cups each she makes 7 quarts of lemonade does she have enough lemonade for each guest?

Two statements in a proof are: m∠A = m∠B m∠B = m∠C What reason could you give for the statement m∠A = m∠C? Complete the explanation of your reasoning.

A store had 600 pounds of feed. After delivering equal amounts to 4 farmers, there are 60 pounds left. How many pounds did each farmer receive?

Simplify the following expression. 1/4 (24-16x) a. 6+4x b. 6+4 c. 6-4x d. 6-4

In some country's congress, the number of representatives is 25 less than five times the number of senators. there are a total of 515 members. find the number of senators and the number of representatives.

one large cake can feed 12 adults or 16 children. how many cakes will be needed to feed 30 adults and 50 children

Using quarters, dimes, nickles and pennies how to make $1.53 in 12 coins