4x - 2y - 5z = - 51

4x - y - 2z = - 36

4x - 2y + 4z = - 24

What is 2c^2 + 6c - 8

The wool sold 4038 tickets to their soccer game the leopard sold 6224 tickets to their game how many more tickets did the leopard so then the wolves

If the mean of 2 3 x and 5 is 4, find x

You join a gym that costs $59 per month. The first three months are free. If you join for 12 momths, how much wil you pay in all?

A sample of a population of 100 students is collected. Five students playing dodgeball at recess are asked if they prefer playing outdoors or indoors. Which of the following is not true of the sample? A. The sample is not large enough. B.

3x+3=x-5 solve using models

A certain type of bacteria doubles every 7 hours. If you started with 36 bacteria, how many would you have after 28 hours?

Which of these is the algebraic expression for "4 times the sum of 2 and y?"

If 5x+6=10 what is the value of 10x+3

The sears tower in Chicago is 1450 feet tall. A model of the tower is 24 inches tall. What is the ratio of the height of the model to the height of the tower?