The price of an item has risen to $180 today. Yesterday it was $80 . Find the percentage increase.

How do you find the circumfrance of a circle?

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?