The graph shows the distance, d, in miles, that Joe can drive his car using g gallons of gasoline. What is the rate of change in this situation? 30 miles per gallon of gasoline

35 miles per gallon of gasoline

20 miles per gallon of gasoline

25 miles per gallon of gasoline
plz help!

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a. f[g(3)] b. g[f(5)] c. g{f[g(-4)]}

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Nikolas calculated the volume of the prism. his work is shown below.