Please help! Idk what to do I've tried so many ways.

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length

Solve the system of equations. y=3x-1 and y=-2x+9. show work

Darcy deposited $390 into a savings account. as long as the account balance remains at or above $150, she does not have to pay a service fee for the account. for how many months can she withdraw $40 a month without having to pay service fees? a) 3 b) 5 c) 6 d) 9