Solve the equation. check your solution.

8 = r + 15

-7

Step-by-step explanation:

8=r+15

-15 -15

-7=r

check

8=r+15

substitute

8=-7+15

8=8 check

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.