Solve by elimination:
4x+7y =8
-8x -14y= 5

Step-by-step explanation:

Given:

Glyder's Parachutes manufactures and sells parachutes of various types and prices. Also  3 charts prepared at the end of the year

I chart between days of production and Number of

Parachutes Produced shows that when former increases, the latter also increases.

Hence direct variation

II chart between  Purchase Price

of Parachute  and Number of

Parachutes sold:

Here when purchase price increases ,sales price also will increase resulting in less number of sales.

Hence indirect variation

III CHart shows that  that the purchase price of a parachute with the cost to produce the parachute.

Here when apurchase price of a parachute increases, automatically cost to produce would increase.

Hence direct variation