Jack wanted a leather jacket that was priced at $253. When he went to the store to make the purchase, it was reduced in price to $220. What was the percent of decrease in the price of the jacket? (round to the nearest whole percent)

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

Find the commission on a $590.00 sale if the commission is 15%.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?