What would be 13,14,15,16,17,18 ms

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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