PLS I NEED HELP I ONLY HAVE 15 MINS I BEG YOU PLEASE!! :( In 1984 the average American used to eat 55.7 pounds of chicken. This was 2.8 pounds more than the 1982 average. By what percent did chicken consumption increase from 1982 to 1984?

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

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?

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?