Solve the following system of equations by graphing. 3x - 2y = -6 - 3x - y = -12​

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

How to solve a simultaneous equation involved with fractions?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry