a room with dimensions 10 ft by 5 ft require 400 tiles. how many tiles are needed for a room that measures 7 ft by 21 ft?

What is the LCM of 30 and 45? a0

Kristin bought a quart for $3.80. How much does the yogurt cost per cup?

Find the least common denominator for these two rational expressions a / a^2 - 6a + 9 7 / a^2 - 8a + 15

What is x? - 5 (3x-6) = 6x+8

Pedro bought 7 tickets to a basketball game. He paid a total of $154. Enter an equation, using x as your variable, to determine whether each ticket cost $22 or $25. Then enter the cost of the ticket.

2.2 A Train is Traveling at ... A train is traveling at a constant speed and goes 7.5 kilo "1 dl a constant speed and goes 7.5 kilometers in 6 minutes. At that rate: 1. How far does the train go in 1 minute?

Which of the following represents the most accurate estimation of 664 - 127?

What is the rule if the input numbers are 1,2,3,4,5 and the output numbers are 2,5,10,17,26

What's the difference between 4.5 and - 3.5

Joe went to the store and bought six packs of pens for $1.79 each, five erasers for $.89 each and a pack of paper for $3.29. He had a coupon for 25% off and then had to pay 6% tax. What was the final cost of his purchase?