It seems to me, that if you were to add the price of all three items together, then multiply by 7.5%, you'd have the answer. Remember that 7.5% = .075 ... in other words, that is the number you would multiply the sum of the items by. Does that help?
Answer:
4c^2+7c-5=0
4c^2+7c=5
4c^2+7c=5
4c^2+7c-5=0\quad :\quad c=\frac{-7+\sqrt{129}}{8},\:c=\frac{-7-\sqrt{129}}{8}\quad \left(\mathrm{Decimal}:\quad c=0.54472\dots ,\:c=-2.29472\dots \right)
Hope This Helps!!!
Answer:
-9
Step-by-step explanation:
an integer is a whole number!
Answer:D
Step-by-step explanation:
2x + 3y = 12
-2x -2x
3y = -2x + 12
/3 /3 /3
Y = -2/3x + 4
Answer:
See Explanation
Step-by-step explanation:

x=number of hours Isaiah worked.
y=number of hours Cooper worked