Calculate the radius of the below. Show all work.

Area -0.25 ft

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.