
Hyunjeong O. answered 05/01/19
Friendly and Experienced Algebra 1 Tutor!
Let's write math equation with variable "x" (x = hourly rate for rent)
-> 3x = 85
-> In above equation, 3x = cost of rent for 3 hours
The cost to rent for 6 hours will have this equation below,
-> 6x = 2* 3x = 2* 85 = 170
We need to add 7% of tax to find total cost.
-> 170 + 170 * 0.07 = 170 + 11.9 = 181.9
Answer : $181.9
Hope this is helpful :)