Joe ate1/4 of a cake Lisa ate 1/8 of a cake how much cake did they eat in all

I am strugling on 2+2

A mechanic charges $25 per hour and $40 for each hour of overtime. For a job, the mechanic works 5 regular hours, an unknown amount of overtime hours, and charges $200 for new parts. The amount of the bill for the job is $525.

What is 2y/3+27+3y/4=-24

Using Coupons, you spend $120 grocery shopping. This is 80% of the total retail price of the groceries. How much would you have spent if you had not used the coupons?

If u walk 4.4feet per second, How many minutes will it take you to get to a room 86 feet away from you?

A recipe requires 2/3 cup of butter, Rama wants to make 3/4 of the recipe, how many cups of butter should Rama use?

What is the perimeter of a square that has a side length of 4x+2

The amount of money in a savings account increased from $5,600 to $6,720. What was the percent of increase in the amount of money saved?

Elaine deposited $500 at 4.25% compounded continuously for t number of years.

Eon needs to save more than $350 to buy a new bike. He has $130 saved so far, and he plans to save $20 each week until he has enough. The inequality below represents x, the number of weeks he must save to have the extra money needed.