Jake and mike took a different number of tests. jake scored 85 points on each test. mike's total score was 15 less than jake's total score. the following expression shows mike's total score: 85x − 15 in the expression, what does the variable x represent? a. the total number of tests mike took b. the total number of tests jake took c. the sum of jake's and mike's total score d. the difference between jake's and mike's total score

We have been given that Jake scored 85 points on each test.

If we suppose that Jake took x test then total number of points scores by Jake is 85x.

Now, we have been given that Mike's total score was 15 less than Jake's total score.

Therefore, Mike's total score is given by

Therefore, the variable x represents the total number of tests Jake took.

B is the correct option.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).