15 / 330 = 20 / x...15 gal. to 330 miles = 20 gal to x miles
cross multiply because this is a proportion
(15)(x) = (20)(330)
15x = 6600
x = 6600/15
x = 440 <=== 20 gallons will take u 440 miles
Y inter (0, -3) x inter (2,0)
The answer is 465 and you are welcome
13/2 = 6.5
2/13 = 015
6.5-0.15 = 6.35
12/-30=8x
cross multiply
12x=-240
x=-20