3. The manager of a store marks up all the items by 10%. If x is the original price, which expression represents the new price with the markup? 0.9x
x
1.1x
x+0.1x
x-0.1x

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?

How to write four times a number, minus 6,is equal to theee times the number+8 as an equqtion

Last week jason walked 3 1/4 miles each day for 3 days and 4 5/8 miles each day for 4 days. about how many miles did jason walk last week?