They have collected $400 in donations, A school is raising money for new desks.
and are hosting a dinner, which costs $10
to attend. Every person at the dinner buys a
$2 raffle ticket, and the winner of the raffle
gets $500

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Through non-collinear points there is exactly one plane.

Solve 17= -13 - 8x and show your work.