Which is the better buy, 3 pounds of apples for $3.99 or 5 pounds of apples for $7.89?

What term makes it inconsistent y=2x - 4 ?

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

Tom drove 206 miles in 3.9 hours. estimate his average speed.