Arelation is a function if there is exactly one input for each output there is exactly one output for each input there is more than one input for each output there is more than one output for each input

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?