Me find the value of x
25 points

Right triangle so 
Pythagorean theorem:
c^2 = a^2 + b^2
a = 6 and c =√117
to find b:
b^2 = c^2 - a^2
b^2 =  (√117)^2 -  6^2
b^2 = 117 - 36
b^2 = 81
b = √81
b = 9

x = 9 cm

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