Raphael counted a total of 40 white cars and yellow cars. there are 9 times as many white cards as yellow cars. how many white cars did raphael count?

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

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?