Molly sold half of her comic books and then bought nine more. she now has 36 with how many did she begin

What are different types of statistical programs

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Select all the expressions that will include a remainder.