What is the answer ??

Step-by-step explana

the cost of one package of crackers is x (dollars)

the cost of one package of cookies is y (dollars)

the cost of one candy bar is z (dollars)

             (0 < x;y;z < 3,5)

a snack bag containing 6 of each type of snack costs 21.00

=> 6x + 6y + 6z = 21.00 <=> x + y + z = 3,5 (1)

a snack bag containing 8 packages of crackers, 5 packages of cookies and 10 candy bars costs 26.00 => 8x + 5y + 10z = 26.00(2)

containing 5 packages of crackers, 4 packages of cookies, 7 candy bars costs 18.50 => 5x + 4y + 7z = 18.50 (3)

(1),(2),(3) => x + y + z = 3,5

                    8x + 5y + 10z = 26

                    5x + 4y + 7z = 18,5

<=> x = 0,75

       y = 1,5

       z = 1,25

=> the cost of one candy bar is 1,25 dollars

lol we need to see what the question is asking about

step-by-step explanation:

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct