The first choice is correct. 1 times 8 is 8, and 1+8 is 9
the first one is x^2 + 6x + 34
the second one is x^2 - 12x + 37
the third one is x^2 + 16
The answer is b. "at most" means that x + (x + 1) must be smaller than or equal to the other side of the equation.
The answer is the first one; 81.26m
