47 points for correct

sam's class is trying to raise money for their class field trip to the local water park. the boys are selling hamburgers and chips for $4 each and the girls are selling hot dogs and chips for $2 each. the boys plan to sell 100 hot dogs. they must raise more than $800.

there are 2 correct answers. i just need it to be solved step-by-step.
correct answers
1200 > 800 and 2000 >
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answer:

x = hot dog price

y = hamburger price

5x + 4y = 16.50

4x + 5y = 17.25

4(5x + 4y = 16.50)

20x + 16y = 66

5(4x + 5y = 17.25)

20x + 25y = 86.25

now subtract the equations:

20x + 16y = 66

20x + 25y = 86.25

9y = 20.25

y = 2.25

hamburger is $2.25

4x + 5(2.25) = 17.25

4x + 11.25 = 17.25

4x = 6.00

x = 1.50

hamburgers are $2.25

hotdogs are $1.50

step-by-step explanation:

(x, y)→(x − 8, y − 7)

step-by-step explanation:

enjoy!

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17