I NEED HELP PLEASE FASTTT 100 COINS

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

What is the value of x in the diagram below?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?