Last year the chess club had 20 members. This year the club has 15 members. Find the percentage of change and state whether the percent of change is an increase or decrease

Factor the perfect square trinomial completely. 7w^2-84w+252 ive got an idea how to solve it, but i need double checking

a quarter weighs about 0.2 ounce. Naoki has 2 pounds (32 ounces) of quarters. About how many quarters does he have?

Suppose you pay $29.25 for a pair of shoes that has been discounted 35%. What is the original price of the shoes? Show how you identify what you are looking for, set up an equation, arrive at your answer, and check your work.

A computer store bought a program at a cost of $10 and sold it at a selling price of $14. Find the percent markup.

It's for pre-algebra 6x=24

You and a friend buy two fruit smoothies and leave a tip. You split the total and your half cokes to 3.60. What percent tip (in decimal form) did you and your friend leave if the fruit smoothies cost $3 each?

Terry deposit of $520 into your bank account that run simple interest each year after five years she had earned $156 in interest if no money was deposited into or withdrawn from the account what was the annual interest rate

Solve the system of equations by elimination. 2x-y+3z=-12x-y+3z=-1 x+2y-4z=-1x+2y-4z=-1 y-2z=0y-2z=0

Change 0.56 radians into degrees and minutes.

Evaluate 4P3 24 7 10 12