A $.50 comic book if the sales tax rate is 7.5$

Find the surface area of the prism formed by the net

(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.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?