Solve for s. 12s=72 17 27 3 7 need answer asap will marke brinlyest

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?