Solve using the elimination method.
- 7x - 8y = -23 and 4x + 4y = 12

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?