Solve the system by substitution or elimination. {-x+y=22x+y=-1

4 times what equals 28

1180 divided by 4 show your work

Whats the sqaure root of 69?

Simplify - 4m + 5n - 2 - 3m + 3n + 7. A) - 7m + 8n - 9 B) - 7m + 8n + 5 C) - 7m2 + 8n2 - 9 D) - m + 8n - 9

What minus 7 equals 16

One of the highest snowfall rates ever recorded was in silver lake, colorado, in april 1921, when just over 7 feet of snow fell in 27.5 hours. what was the rate in inches per hour

On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest foot.

How do you solve 6/7=y-3/7?

Is the function in the table linear or nonlinear and why? x y 0,-100 and 1,-50 and 2,0 and 3,100 and 4,150. (A) The function is not linear because there are negative values in the y values.

The median size of a new house grew from 1780ft in 1997 to 2223ft in 2008. What is the percent of increase?