A shopper pays $2,937 for a $2,670 grandfather clock after sales tax is added. What is the sales tax percentage?

(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.

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

What is the simplified form of square root of 400 to the 100th power ?