The first one is correct, just match the numbers with the corresponding sides of each triangle
The two in the middle. B and C, I guess.
Answer choice 3 is correct
The answer is 3x+18=147°, because a central angle is equal to the amount of degrees of its arc.
23 i used an app use should also give that a try
-5a^2 - 7a = -a x (5a + 7)
let me know if you have any other questions
:)
