(10 points and brainliest for best). last month ben spent $380 on food and $420 on personal items.
what percent of his monthly income did he spend on these items?
(you must set up and solve a proportion,
set up and solve a percent equation, and
write a sentence to explain your 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?