Twice the difference of a number and five is negative 2

6

Step-by-step explanation:let the number be x a

so we have,

2(x-5)=2           open the brackets

2x-10=2

2x=2+10

2x=12

x=12/2=6

x=6

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2