Gereslyn charges a flat rate of $90 for the design and an additional $150 for each hour of tattoo work. The expression that represents the total cost for h hours is $90 + ($150 * h). For 6 hours of work on Ms. Glushanok's arm, the total cost will be $990.
The expression that can be used to represent how much Gereslyn will charge if the tattoo session takes h hours to complete is:
Total cost = $90 + ($150 * h)
To find the total cost Gereslyn will charge for 6 hours of work on Ms. Glushanok's arm, we can substitute h = 6 into the expression:
Total cost = $90 + ($150 * 6)
Total cost = $90 + $900
Total cost = $990
Therefore, Gereslyn will charge a total of $990 for 6 hours of work on Ms. Glushanok's arm.
In this scenario, Gereslyn charges a flat rate of $90 for the design, which is a one-time fee regardless of the number of hours worked. In addition to this, she charges an additional $150 for each hour of tattoo work. So, for each hour worked, an extra $150 is added to the total cost.
To calculate the total cost for a given number of hours, we multiply the number of hours (h) by the additional cost per hour ($150) and add it to the flat rate design fee ($90).
To find the total cost for 6 hours of work, we substitute h = 6 into the expression and simplify the equation to find the answer, which is $990.