Lawrence's parents pay him a base allowance of $20 per week and $3.55 per hour for extra chores he completes. mrs. johnson pays lawrence $7.15 per hour to lifeguard at the city pool. which equation models lawrence's total weekly income? a. i = 7.15x ? 3.55y ? 20 c. i = (3.55 + 7.15)x + 20 b. i = (3.55 + 20)x + 7.15y d. i = 3.55x + 7.15y + 20

7.15x + 3.55y + 20 = weekly income

Step-by-step explanation:

7.15x + 3.55y + 20 = weekly income

  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).