How do I solve this? (3^0y)^2x2(xy)^0

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints