While playinclin the sand, a little girl made 5 piles of sand on one side of her and 6 piles on the other side. Then her brother came along and put all the piles
together. How many piles were in the sand then?

Find the given elements if matrix d:

Find the missing variable for a parallelogram: a = latex: 28in^2 28 i n 2 h = b = 6.3 in (1in=2.54cm)

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?