The average of four numbers is 90. If three of the numbers are 70 .85, and 95. what is the fourth number?

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Describe what moves you could use to create the transformation of the original image shown at right

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept