Question

Mrs. Beaty buys sketchbooks and puzzles. Each sketchbook costs $1 and each puzzle costs $3. Which ordered pair represents the cost of 3 sketchbooks as the x-value and 3 puzzles as the y-value?

Answer 1

(3,9)
3 sketchbooks for a dollar each 3 times 1 = 3
3 puzzles for 3 dollars each 3 times 3 = 9

Answer 2

Celine bought 100 cookies if each cookie cost 50 cents how much will be if she bought 200 cookies