(2) + (2)
=> 8x - 6y = -46 ———(3)
(1) + (3)
=> 5x + 6y + (8x - 6y) = 20 - 46
=> 13x + (6-6)y = -26
=> 13x + 0y = -26
=> 13x = -26
=> x = -26/13
=> x = -2
=> 5(-2) + 6y = 20
=> 6y = 20 + 10
=> 6y = 30
=> y = 5
x = -2, y = 5 => C
No because 8x8x8 is 516 and to find exponent is if it is 3 as exponent you times it by itself 3 times so the answer is no he is wrong
I did this using the method of substitute the answer is the first one (5/7, 12/7)
My work is in the picture below
The answer is b 113.04cm^2
Answer:
≈0.167 (2/3)
Step-by-step explanation:
hope this helps!