A square sandbox has an area of 75 square feet. Estimate the length of one of the sides of the sandbox to the nearest tenth.

I belive the answer would be 18.8

Step-by-step explanation: 75/4=  18.75 rounded to the nearest tenth would be 18.8

10+4√2 is the answer. i dont have the time to explain.

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal