‼️‼️‼️‼️HELP‼️‼️‼️‼️ can anyone plz help me i have to write the formula and everything down but i have no idea how to solve this and i need answers with the explanation plzzz

The sum of two numbers is 86, and their difference is 20. find the two numbers

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?