David drove 168 miles on 7 gallons of gasoline. which of the following equations can be used to find how far can he can travel on a full tank of 16 gallons?

Find the value of the cosine for angle a

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Polynomial that can be factored as (3x-4)(3x+4)