Answer:
23.3%
Step-by-step explanation:
this is the estimated life expectancy of a male person to live to one hundred
angleD=(7b+1)angle E=(2b+1)and angle F=(b+8)
i think it's 10.6
112 = x^2
x=17
3(x+8) = 7+4x
3x+24 = 7+4x
24 = 7+x
17=x