Answer:
We set up 2 equations
A) C + A = 100
B) 5C + 12A = 780
We multiply A by -5
A) -5C -5A = -500 then we add B
B) 5C + 12A = 780
7A = 280
Number of Adults = 40
5C = 780 - 40*12
5C = 780 -480
5C = 300
Number of Children = 60
Step-by-step explanation:
Just do 3^2 * 3^2 he is incorrect because he multiplied the exponents and he was suppose to add them together. the correct answer should be 3 to the 4th power which is 81
[ Answer ]

[ Explanation ]
- Find Area Of Rectangle That Measures 18 Feet Long And 15 Feet Wide
-----------------------------------
Area = Base · Height
Base - 15
Height - 18
- Insert Numbers Into Equation
15 · 18
15 · 18 = 270
270 
![\boxed{[ \ Eclipsed \ ]}](https://tex.z-dn.net/?f=%5Cboxed%7B%5B%20%5C%20Eclipsed%20%5C%20%5D%7D)
Answer:
i think it is y=2x
Step-by-step explanation: