How to turn how to turn a decimal into a fraction?

What is the slope of the line (-7,2) (4,6)

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top