Which expression can be used to find the retail price of an item that was bought at wholesale for $112 and sold at a 40% markup? $112 + 4($112) $112 – 4($112) $112 – 0.40($112) $112 + 0.40($112)

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g