The perimeter of a semicircle is 15.42 kilometers. What is the semicircle's radius?

Patty has $20 to spent on gifts for her friends. her mother gives her $5 more. if each gift costs $5, how many gifts can she buy?

What is the equivalent expressio to 8 (2x+7

Brine's kitchen has an area of 81 square feet. the kitchen is 9 times as many square feet as brine's pantry. if the pantry is 3 feet wide, what is the length of the pantry?

8/9 divided by - 1 4/15

The area of a square mirror is 256 in2. A rectangular mirror has a width the same as the square mirror's width. Its length is two inches longer than its width. What is the area of the rectangular mirror?

The cost medium pizza with no toppings is $7.50. The cost of each topping is $0.50. a) what is the equation that represents this relation if C represents the cost of pizza and N represents the number of topping?

380 is what percent of 456

What number represents the most accurate estimation of 375+147

The price of a notebook was $3.30 yesterday. Today, the price rose to $3.80. Find the percentage increase. Round your answer to the nearest tenth of a percent.

Yuri needed 24 minutes to solve 6 math problems. how long will he need to solve 10 math problems?