Please see image above. can someone please explain how this is correct? i don’t understand. tysm

-2/3x + 13 ≥ -1

Let's start off by subtracting 13 from both sides.

-2/3x ≥ -14

Divide both sides by -2/3. Dividing a negative number flips the sign.

x ≤ 21

The correct answers are 19, 20, and 21 because these numbers are less than or equal to 21.

60

step-by-step explanation:

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