X - 3y=-12
-9x - y = 24
Solve plzzz

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?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585