Algebra home work plz ! 1.) -(3d-2x) /5b 3.)〖(3/8)〗^3 4.) 2[5^2÷(3^2-2^2)+7] 5.) what is the value of x/y when x=9/4 and y=3/5? 6.) you are shipping a care package to your sister in college. it costs $0.85 per pound plus a flat-fee of $12 to ship the package. write and use an algebraic expression to find the total cost of shipping a 7 pound care package.