Answer:
p = 15/x
x= -3
Step-by-step explanation:
For the first problem, we can expand the equation to 4px+4=64
then simplify it to:
4px=60
then divide 4x from both sides of the equation
p=60/4x
then simplify:
p=15/x
For the second problem:
plug in -5 for p so the equation would look like
4(-5x +1)=64
simplify
-20x=60
x= -3
8a - 1 + 0.5b = 8(1/4) - 1 + 0.5(10)
= 2 - 1 + 5
= 1 + 5
= 6
D is correct
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Answer:
Yes, you would have to purchase a second shirt if you wanted there to be free shipping because not only does the t-shirt and pants not reach 75 but it's also 20% off the total.