Answer:
40
Step-by-step explanation:
you have to do this first:
10x4=40
Jill = x
Jack = x + 1 1/3
X = 5 1/2
Solving Equations
5 1/2 +1 1/3
=6 5/6
Answer = 6 5/6 hours
The third answer is correct 4^0
Because the equation equals to 1
And anything powered to 0 is qual to 1
I hope this helps you
5 (6x^2+7x-- 3)
5 (3x.2x+7-1.3)
5. (3x-1)(2x+3)