3x+8=3x+ Which value could you write in the blank above that would make the equation have one solution?
a.2x

b.8

c.7

2x

Step-by-step explanation:

Think about it. Adding 8 would make the equation: 3x+8=3x+8. That has infinite solutions.  if you made it 7, it would be 3x+8=3x+7, which is impossible.  

Therefore, it must be 2x, which would make the equation 3x+8=5x.

Let's check: 3x+8=5x

                     8=2x

                     4=x

All good.

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²