4 pounds of grapes cost $5. 7 pounds of grapes cost $8.75. What is the cost per pound?

$1.4

Step-by-step explanation:

if you divide $5.1 by 4 you will get your answer.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

table 3 represents a direct variation function. : )