Which is the better buy 1 pound of candy for $3 or 1 kg of candy for $6

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.