Andrew's family set up an anti-virus protection plan for their home computer. It cost $7 per month with a one-time installation fee of $20. What is the constant rate of change (or m) for the situation above?

A+b= 17, ab=70, find the value of |a-b|

Find the value of x to the nearest tenth.

The function c(n) below relates the number of bushels of apples picked at a pick-your-own orchard to the final cost for the apples. it takes as input the number of bushels of apples picked after paying an entry fee to an orchard and returns as output and returns as output the cost of the apples (in dollars)c(n) = 15n + 30which equation below represents the inverse function n(c), which takes the cost of the apples as input and returns the number of bushels picked as output