Answer:
72 and -2
Step-by-step explanation:
x - y = 74
2x + 3y = 138
x - y = 74
y = x - 74
2x + 3(x - 74) = 138
2x + 3x - 222 = 138
5x = 360
x = 72
x - y = 74
72 - y = 74
-y = 2
y = -2
153-27-19= 107
Hector serves 107 ice cream cones on the weekdays. All you do is subtract the 2 weekend days from the total and you get the answer of the ice cream cones on the other 5 weekdays.
*If needed-- He would have sold about 21 cones each WEEKDAY*
Answer:

Step-by-step explanation:

Rewrite:
![\dfrac{1}{\sqrt[3]{n^2}}=9\\\\9\sqrt[3]{n^2}=1](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B%5Csqrt%5B3%5D%7Bn%5E2%7D%7D%3D9%5C%5C%5C%5C9%5Csqrt%5B3%5D%7Bn%5E2%7D%3D1)
Cube both sides:

Divide both sides by 729:

Take the square root of both sides:

Hope this helps!
Each square is 3 by 3, so the area is 3*3 = 9. We can leave it as 3*3 since that's what the answer choices show.
There are 6 of these squares, so the total area of this figure is 6*3*3
The total area of the net is the same as the total surface area when we fold along the lines to form a 3D cube
Final Answer: 6 x 3 x 3 square inches which is choice D