Addie makes cookies with a recipe that calls for 3.5 parts chocolate for every 1 part of walnuts. if she places 2.5 cups of chocolate into one batch of cookies, how many cups of walnuts will she need?

The verbal translation for the difference of m and 7 increased by 15

Can someone explain to me how to do

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.