8 choices
4 first names and for each 2 middle names
Answer:
15/9
Step-by-step explanation:
if it helps, x= 10

Why?
We have the isosceles right triangle. The length of legs are 6. Use the Pythagorean theorem:

In general, the formula for calculating the hypotenuse in an isosceles right triangle is 
a - a leg, h - a hypotenuse
Y=3.5x+4
a) 5=3.5x+4, 3.5x=1, x=1/3.5=2/7
b) y=3.5*10+4=35+4=39
-28x-49x-16+32x
-77x-16+32x
-45x-16