If A = {3,5,9} and B
{2,4,5,6,9,12}, what is AU B?

Me find the measure to side c and the process to solve the problem you appreciate it : )

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?