The cost of car service is partly constant and partly varies with the time it takes to do the work it cost $3500 for a 5.5 hour service and 2900 dollars for a 4 hour service. a) find the formula connecting $3 with time T hours.
b) find the cost of a 7.5 hour service.

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

explanation:

step-by-step explanation:

answer: 1+1

step-by-step explanation: 1+1 is at least 2