Hi there!
Ok i would love to answer you but do you have answer choices, or the other part of the question or a image?
~Jada
What is the question asking? i dont know if you want to find the angle (which is 90 degrees) or if you ant to find 24^2 (which is 576) or if you want the square route (which is 4.89897948557 or simplified to the nearest tenth its 4.9)
Answer:
radius=diameter÷2=36÷2=13
She will have $57 back because the ticket are buy one get one free and she has 7 friends so for 3 tickets that u buy 6 of your friend get to go and then thei is still one more friend so you have to buy one more ticket so 10.75*3=32.25
and 32.25+10.75=43 and 100-43=57