Whitney is saving to buy a brand-new easel for painting that costs at least $200. She can save about $7 a week from her allowance. What is the least number of weeks she must wait before she can buy any easel within her
price range?

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).