Pedro's diner is open six days a week. his income for the first five days this week was
$120, $110, $200, $300, and $140. how much must he make on the sixth day to have a
mean(average) of $200.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

the line of