How do you solve this problem and what is tr answer

Solve 2x+y=3 x+y=5 in substitution method

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

At 6 1/2 cents per pound of string beans how much does 7 pounds cost