Which of the following illustrates the truth value of the following mathematical statements? 6 + 3 = 9, and 5 • 5 = 20

First, the need to determine if the statements are true or false. 
1) 6+3 =9 (This statement is true)2) 5*5=20 (This statement is false since 5*5=25)
With this in mind we can determine that what will illustrate the truth value would be: 
T F -> F
In other words, since the first statement is true and the second statement is false then conjunction of both statements would be false. 

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