The price of a sweater reduced from $20 to $12. by what percentage was the price of the sweater reduce ?

Write the sentence as an equation. b increased by 281 is d

He concluded that a heavier object dropped from the same height as a lighter object will land

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6