2x + 2x + x = 180°
5x = 180°
x = 36° (C)
Collect like terms and you'll get -2 - 3(a - b)
Hey how are you doing today?
It’s A. $25.20
You find the rate you dividing the cost ($18) by how many gallons (5). Then you multiply by what you are looking for (7 gallons). You get 25.20.