Paula bought p packages of 5 rolls of tape. Then, she bought 2 individual rolls of tape. Which expression shows how many total rolls of tape Paula bought?

This is different from the first one can someone me

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

X+ y = 5 ; x - y =3 solve using linear combination