Can someone help me plzzz

21. 34

22. 35

22. 80

Step-by-step explanation:

21. ac=dc so..

4x+5=3x+8

simplify and you get...

x=3 then you plug it in to the formula ac+dc to get ad

4(3)+5+3(3)+8

17+17=34

22. fcd-bcd=fcb

plug in the angles

130-95=fcb

35=fcb

23. fca=ecd and acd is 180

if fca is 50, so is ecd

50+50= 100

180-100=80

so fce=80

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

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.