What is 67% of 12? i need an answer quick.

a.) 0.18
b.) 2.04
c.) 8.04
d.) 5.58
i know its not c because that's too big of a number.

Math each whole number with a rational,exponential expression

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.