El doble de un numero, aumentado en 3 es igual al triple del numero disminuido en 3 12

10

13

11

(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.

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?