Can someone help asap? show your work pwease :)

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

For question number 8 all you have to do is add all the sides and make them equal to 180 so when you make it into an equation it'll look like this...

Now you combine like terms then solve...

So now you got x = 12.

___________________________________________________________

For question number 10 you should now that those two angles inside add up to the angle on the outside so if you know that those two angles add up to the outer angle, you should make an equation like this...

Now combine like terms and solve...

So now you have x = 5.

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt