A customer pays $18 for a dvd that orginally cost $20 what is the percentage in the cost of the dvd

A customer purchases a camera for $76.27. If the customer gives you $100, how much change should you give them back?

Alex earns $5 per hour when she baby sits. How many many hours does she need to work to earn $75?

The perimeter of a rectangle is equal to 10. If the length is halved and the width is doubled, the new perimeter is increased by 4. What is the length of the original rectangle?

What is the object distance? you will need to use the magnification equation to find a relationship between s and s′. then substitute into the thin lens equation to solve for s.?

2+4 (8x-9) * 3 How to solve x?

Are a rational expression and its simplified forms equivalent? Provide mathematical examples to support your opinions.

Select all the correct answers. Aisle 2 of a furniture store stocks 4-legged chairs, 4-legged tables, and 3-legged stools. If there are t tables, c chairs, and s stools, which expressions show the total number of furniture legs in aisle 2?

Assume a round of golf requires four hours of leisure time, and attending a concert requires two hours. If the price of a round of golf is $40 and the price of a concert is $80, ceteris paribus, Joe will play

Hans is planting a garden with snapdragons and daisies. The table shows some possible combinations of the two plants. If Hans plants 29 daisies, how many snapdragons will he plant?

Find the greatest common factor (GCF) for each number set 1. 4,10 A. 1 B. 2 C5 2. 25,50 A. 1 B. 5 C. 25 3. 56.63 A. 1 B. 6 C. 7 4. 12,24,48 A. 2 B. 12 C. 24 5. 96,120 A. 2 B. 12 C. 24