The equation p = 2 (l + w) can be used to find the perimeter p of a rectangle with length l and width w solve the equation for w to produce a formula for finding the width of a rectangle given its perimeter and length

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