Three copies of a book cost $20. Use equivalent ratios to find the cost of nine copies of the book.

a bicycle is on sale for 20% off the original price. if the original price of the bicycle is $240, what is the sale price?

If i was born in 1938 how old am i now?

Define a variable and write an algebraic expression to model each situation: 1) what is the total cost of buying several shirts at $24.95 each? 2) the number of gal of water used to water trees is 30 times the number of trees.

Choose a number line to model the following situations pedro deposited 35 dollars in his savings account, then withdrew 50 dollars.

Suppose f (x) = 4x - 2 and g (x) = - 2x + 1. Find the value of f (g (3)).

an 80 ounce bottle of apple juice conatins 32 ounces of water a 64 ounce bottle of orange juice has 48 ounces of water which juice has a greater percent of water

What value of x is in the solution set of 2 (3x - 1) = 4x - 6? 0 -10 -5 000

Is 3,540 reasonable for the difference 9,760-5,220

The money used in Saudi Arabia is called the Riyal. The exchange rate is 4 Riyals to $1. Find how many Riyals you would receive if you exchanged $5.

What is 5/1 • 7 3/6 and 3 1/3 • 2 2/4 simplify?