If 2 Pencil cost 28 cents how much will 5 pencils cost

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.

What is the cube root of -1,000p^12q3? -10p^4 -10p^4q 10p^4 10p^4q

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20