Plz help me well mark brainliest if correct...??.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.