Is the rate1.2 inches of rain/5 hrs equivalent to the rate2.1 inches of rain / 8 hrs ?

I said NO because:
1.2 x 8 = 9.6
2.1 x 5 = 10.5

Yes!!! You're right. The answer is NO.

thanks

You're welcome. :-)

To compare the two rates, we need to determine whether they are equal or not.

The rate is calculated by dividing the amount of rain by the number of hours.

First, let's calculate the rate for the first scenario:
Rate1 = 1.2 inches / 5 hours

Now, let's calculate the rate for the second scenario:
Rate2 = 2.1 inches / 8 hours

To compare these rates, we can calculate the amount of rain that would accumulate in the same number of hours for each scenario.

For the first scenario:
Rate1 x 8 hours = 1.2 inches / 5 hours x 8 hours = 9.6 inches

For the second scenario:
Rate2 x 5 hours = 2.1 inches / 8 hours x 5 hours = 10.5 inches

As you correctly calculated, the accumulated rainfall for the first scenario would be 9.6 inches, while in the second scenario, it would be 10.5 inches. Therefore, the rates are not equivalent, and your conclusion is correct.