Markley's birthday party will cost $22.50 if she invites four of her friends. If she adds one more friend, for a total of five friends, how much will the party cost? Why?

The party will cost 28.125 dollars.

Step-by-step explanation:

Because to find how much each person costs you would have to take 22.50 divided by 4 to get 5.625, then do 5.625 times 5 to get 28.125 as your answer.

50 degrees

Step-by-step explanation:

Tge total angle in a triangle is 300 degrees

angle at A is 40 degrees

angle at B is 90 degrees(because it is right angled triangle and and the angle is 90 degrees)

<A+<B+<C=180

40+90+<C=180

<C=50