A total of 321 adults and children are at a movie theater. There are 216 more adults than children in the
theater. If a represents the number of adults and b
represents the number of children, which system of
equations could be used to find the number of adults
and the number of children in the theatre?
O a+b = 321
a= 216b
O a+b=321
b= 2160
a + b = 321
a = b + 216
D a + b = 321
b= a + 216

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

How does reflecting or rotating a figure change the interior angles of the figure?