7/10 of its original price of $35, and a jacket at 5/6 of its original price of 45.

a. how much money did you spend?
b. how much money did you save?
c. what fraction of the total original price did you save? someone answer this question with detail plz

How many $20 bills do you need to have to make $280

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?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0