42. On a weekend class gathering at a museum, a teacher brings $60 to pay for the museum admission. She buys an adult ticket
for $4 and 20 student tickets. She has $16 left. Write an
equation and find the cost of a student ticket.

1+1+1+1+1+1++11! +++1++1+

5

step-by-step explanation:

  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).