1) A fast-food restaurant sells hamburgers at 15 pesos each and hot dogs at 10 pesos each.
a. Write an algebraic expression to find the total sales revenue if the fast food restaurant sells x hamburgers and y hot dogs.

b. What is the total sales revenue of the fast-food restaurant if x=30 and y=45



2) An isosceles triangle has two equal sides. If the perimeter is (3x + 9) and the measure with the same side is (x + 2), what is the measure of the other side?