B is the answer because none of the others will be right and b is the one you should always do when to solve a rea word problem
Answer:

Step-by-step explanation:
Use the inverse cosine function.



Answer:
19 prizes.
Step-by-step explanation:
First add 153 and 37 which is 190. Then divide 190 and 10. Which is 19.
I think it is A but make sure with someone else
Answer:
$65 is the original price
Step-by-step explanation:
65 x .8 = 52 which is 13 off