Answer:
<h2>-1</h2>
Step-by-step explanation:
4 - 5 = -1
Count:
4, 3, 2, 1, 0, <u>-1</u>
Well i’m not sure on this but i got 18 for my answer instead of 10 so if u need any mode help im here
Answer:
2.8828283e+16
Step-by-step explanation:
You multiply 86 by 42.5 because each board is 42.5 and there are 86 boards.
We substitute the given into the equation
given: a=-1, b=2, c=

=(

-1
=

-1
=

-1
=

-1
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:

=-2.5
Equation=-2.5-1=-3.5
OR Common Denominator:
=


×

(denominator should be -2=common)
=

+

=

which also = to -3.5