4/6 is greater than 6/10 because if you change them to have a common denominator, it would be, 4/6 *10 which is 40/60 and 6/10 *6 which is 36/60. And 40/60 is bigger than 36/60.
Let's find the formula for a rectangle:
2L+2W= 90
Now we know the length is equal to 6 more than 2 times the width, let's make the equation.
L=2w+6
Let's plug that in for L in the first equation.
2(2w+6)+2w=90
4w+12+2w
6w+12=90
6w=78
78÷6=13=w
The width is 13, but we need the length. We know the length is equal to 6 more than 2 times the width.
13×2= 26+6= 32
So, the length of the rectangle is 32 ft.
(-4)⁴ = (-4)*(-4)*(-4)*(-4)
= [(-4)*(-4)] * [(-4)*(-4)]
Because (-4)*(-4) = 16, therefore
(-4)⁴ = 16*16 = 256
Answer: 256
The steps and final answer is shown in the attached image. I wrote it there so I could write out complex algebraic formulas. Let me know if you have any questions about any of the steps. Thank you.