For each of the following systems solve completely using addition or subtraction and check your answer. 20y + 120=200. y + 2x=2

If its takes 3 days to travel 1,560 miles how many days will it take 3,640 miles

what did people long ago think about Earth's resources? Why is that earlier idea incorrect? unit 5 earth science

9. If a prism and pyramid have congruent bases and equal altitudes, then the volume of the pyramid is A. equal to the volume of the prism B. one-third of the volume of the prism C. one-half of the volume of the prism D.

In the equation y=x2, which of the following explains the unit rate? 2, because the unit rate is value of y when x = 1. 2, because the unit rate is the value of x when y = 1. 12, because the unit rate is value of y when x = 1.

How many times does 8 go into 100?

Write an expression that will find the weight o

2. Vanessa wants to model how a car's maintenance costs change as the distance someone drives the car increases. What would be an appropriate unit for Vanessa's purpose? Miles/$ Gallons/Miles $/Miles $/Gallons

a population of rabbits triples every month the population starts with two rabbits how many rabbits are there in 3 months?

3. What is the x-coordinate of the vertex of y = 2 (x + 8) (x - 10) ?

Find the values of x for which the equation cos x = 1 is true