Joe and Danny have just won 350 arcade tickets. If each arcade game can be played with 12 tickets, how many tickets will they have left over at the end of the day, if they play the maximum number of games?

What is the area of the trapezoid shown ?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Can someone tell me if this is perpendicular? !