How to do 6r+7=13+7r and must show all your steps?

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?