Which fraction does not belong? Why? Could there be another? 3/4, 2/6, 4/10, 3/8

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)