I don’t understand this question.

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

(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.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.