Math word problem. a party rental company has chairs and tables for rent. the total cost to rent 5 chairs and 6 tables is $48. the total cost to rent 3 chairs and 2 tables is $18. ? cost to rent each chair: ? cost to rent each table:

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Which one is true about the hexagons ?