Is 10% of 10% of 100 the same as 20% of 100

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

Ineed i been stuck on this question since yesterday