Erica used friendly numbers to find 43-19 she added 1 to 19 and subtracted 1 from 43 what is erica's error

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6

Pranza plotted point a in the coordinate plane below.