Mrs. Lopez made 12 ½ gallons of sweet tea for a celebration. How many quarts of sweet tea did Mrs. Lopez make?

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?

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?

What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9