Answer:
b
Step-by-step explanation:
For this case we have the following quadratic equation:

To factorize, we must find two numbers that when multiplied result in -6 and when added together result in +5. These numbers are: -1 and +6

Then we factor:

Thus, the roots are:

So, Gisele was wrong in step 2. She couldn't find the correct values to factorize.
Answer:
Gisele was wrong in step 2. She couldn't find the correct values to factorize.
Rectangle:
P = 2 (L+W) but length is 2 meters longer than wide
then L = W + 2, So
P = 2 (L + W)
24 = 2(W+2+W)
24 = 2 (2 + 2W)
24 = 4 + 4W
So 4W = 24 -4 =20
W = 20/4= 5, L = 5+2= 7
Double check
24 = 2*(5+7) = 2 *12 = 24
Just subtract 291.5 from 366.6
the answer is 75.1 dollars