Can someone please help me ASAP

x = 12

∠A = 144°

Step-by-step explanation:

Because of the alternate exterior angles theorem, ∠A and ∠B are equal, so:

10x + 24 = 6x + 72

subtract 24 from both sides

10x = 6x + 48

subtract 6x from both sides

4x = 48

divide both sides by 4

x = 12

So ∠A is

10(12) + 24 = 120 + 24 = 144

∠A and ∠B are both 144, no need to do this to ∠B as like i said before, they are congruent, but just in case

6(12) + 72 = 72 + 72 = 144

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10