The metric system is based on powers of what number?

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?