Which gives the solutions to this inequality?

5j + 3 > 18

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?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?