Roxanne has $20 and she wants to buy some shirts. she picks one shirt that costs $10.99 and two shirts that cost $4.99 each. which statement best describes if an exact total or an approximate total should be calculated? a) roxanne can round the prices of the shirts to the nearest dollar and then add to estimate if she has enough money. b) roxanne must add the exact cost of the three shirts so she will know if she has enough money to buy the third shirt.

A

Step-by-step explanation:

bc it's the most simple option for roxanne

  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).

i can you with this question sweetie!

step-by-step explanation: