Which is an example of a linear equation? (x, y) 2 + 7 = 9 3x + 5 = 20 y = 2x + 1

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27