X2 +7x+12
x2-16
What values of x makes the expression undefined

Alonso walked with his friend andy one day, and wanted to compare their speeds. alonso walked 3 miles in one hour, and andy walked 2 miles in 2 hours. complete the table to graph the relationship for each person.

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years