Mr. simon thinks that about 400 orders of fruit salads were sold this week. is he correct?

no he is not correct. if you are rounding, you round to the nearest hundred (in this case) and so since its below 350, you round down (to 300.) you would not round up (to 400) hope this helps :)

i can

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square