Maggie and Mia go shopping together. At the Fashion Bee, all shirts cost one price and all sweaters cost one price. Maggie buys 2 shirts and 2 sweaters for $86. Mia buys 3 shirts and 1 sweater for $81. What is the cost of a shirt and a sweater?

Solve the inequality. write the inequality in interval notation. 9(t-2)> 3(t-7)

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?

Atemperature of 1.64◦f corresponds to answer in units of ◦c.