Please help I’ll give I need help please please please please

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

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank