Pretty sure this is algebra

1.4 is the correct answer

Step-by-step explanation:

a/b=0.6

a = 0.6b

=(2x0.6b + 3xb)/3b

= (1.2b+3b)/3b

= 4.2b/3b

= 1.4

  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).

b. astronomers