How do i make 120% into a fraction and a decimal number?

120/100 is your fraction and 1.2 in a decimal 
Hope that helps.

To make it a decimal move the decimal from behind the number 2 spaces your answer would be 1.20 to make it a fraction

A percent is that number over 100
120/100
you can divide by 10 and simplify these
12/10
you can divide by 2 and simplify even further
6/5

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8