Im not sure how to do these few questions can someone help me?

Question

104% of 109.8 is what? 94.9 is 180% of what?90 is what percent of 118.8?

Answer 1

104% of 109.8 is what?

(1.04)(109) = ?

94.9 is 180% of what?

94.9 = 1.8x

90 is what percent of 118.8?

90 = (x/100)(118.8)