If I am correct the answer is 369,600 feet per hour.
Bobby should grow an amount greater than 70-61 = 9 inches to become taller than 70 inches. Therefore, the correct answer is that Bobby must grow an amount of x> 9 inches to be taller than 70 inches.
Every 3 minutes they make one ton.
there are 1440 a da24H) s0 1440/3= 480
So they make about 480 tons per 24 hours
Positive 14/472 (because of rise over run when finding slope)
