(a) alonzo bought 21 pounds of sugar for $12 . how many pounds of sugar did he get per dollar? (b) christine runs 10 miles in 81 minutes. how many miles does she run per minute? if necessary, round your answers to the nearest hundredth. someone you!

Solve |2x - 5| = 4 if anyone could , that would be great

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3