Answer:
15
Step-by-step explanation:
Because this figure is a parallelogram, the diagonals bisect each other. This means that the diagonals cut each other perfectly in half, meaning that x and 15 have the same value. Hope this helps!
We can take the two points given and plug them into the slope formula.

(-3, 3), (1, -5)
x1 y1 x2 y2

Subtract:

Divide:
Its is 10 because its not even
Answer: -3.5
Step-by-step explanation:
you plug in -20 into why then you’d have -20=4x-6
the. you add 6 to the -20 to have the x alone.
then you’d have -14=4x
then you divide each side by 4 so -14/4 is -3.5
Answer: b = 4
Step-by-step explanation:
<u>Given</u>
4b + 5 = 1 + 5b
<u>Subtract 4b on both sides</u>
4b + 5 - 4b = 1 + 5b - 4b
5 = 1 + b
<u>Subtract 1 on both sides</u>
5 - 1 = 1 + b - 1

Hope this helps!! :)
Please let me know if you have any questions