Use the figure to find the measures of the numbered angles

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?