Chelsea sold half of her comic books and then bought 20 more. she now has 50. With how many did she begin?

What ordered pair is 5 units away from (-5,-3)

Karen measured a hotel and made a scale drawing. A room in the hotel, which is 10 feet wide in real life, is 2 inches wide in the drawing. What is the scale of the drawing?

Find the difference between (x+7) and (3x+4)

A sporting goods store marks up the cost s of soccer balls by 250%. Write an expression that represents the retail cost of the soccer balls. The store sells soccer balls for $5.00 each. What is the retail price of the soccer balls?

Wx+yz=bc solve for z

What is the remainder of 6728 divided by 70

A cylinder has a height of 23 m and a volume of 18,488 m³. What is the radius of the cylinder? Round your answer to the nearest whole number. 256 m 50 m 32 m 16 m

8x9-2-3 = 32 Where do the parentheses go

Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes.

What is the square root of 256?