Scientists found two whales that have a combined weight of 8.4 x 105 pounds. Write this weight in standard notation.

Step-by-step explanation:

8.4  * 10⁵ = 8.4 * 100000

               = 840000.0

              = 840,000

  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).

a is the right answer