Kendra lost one half of her allowance but her mother gave her four more dollars now she has $9 how much was her allowance

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

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.

Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value