Because the x numbers are used more than once it cannot be a function. As for the the relation if its going through the origin then it would be a relation. im going to go with D
miles per gallon (x) = d/g
x = 476/14 = x = 34 miles per gallon
so d/x = g
578/34 = 17 gallons are needed
The most expensive would be one foot wide and forty eight feet long (or vice versa) and the least expensive would be eight foot wide and six foot long (or vice versa).
15 times .245=3.675
24.5 divided by 100= 0.245
(3x^2+1)-(1-x)
3x^2+1-1+x
x=2
3 (2)^2+1-1+2
3×4+1-1+2
12+1-1+2
13-1+2
12+2
14
