What i did is that i did $1.50 time 8 = $12.00 and then do $30.00-12.00=$18.00
The amount earned by Tom is the product of the <em>rate per</em> <em>hour and the number of hours</em> worked which is $90.
- The amount earned per hour = $15
- The number of hours worked = 6 hours
<u>The amount earned at the normal earning rate can be calculated thus</u> :
- <em>Normal rate per hour × number of hours</em>
Amount earned = $15 × 6 = $90
Therefore, the amount earned by Tom after working for 6 hours at the normal rate is $90.
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Answer: 
Step-by-step explanation:
To find the inverse of the function
, the first step is to replace f(x) with "y":

The second step is to solve for the variable "x":

The third step is to interchange the variables, then:

Finally, let be h(x) the inverse of the function f(x). Then, you can replace "y" with h(x). Therefore, this is:
