I need help on some math 6(mn)=(6m)n

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

Pick the description of a geometric object that best matches the real world object box for a deck of card

What is this inequality notation? t is less then or equal to 2