Carter can finish painting a fence in 10 hours. When Carter and Chase work together, they can finish painting the fence in about 6.5 hours. About how long would it take Chase it he worked alone?

H(x)=4x2-5x h(-3) what is the answer?

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?

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?