Given the graph of the line represented by the equation f(x) = -2x + b, if b is increased by 4 units, the graph of the new line would be shifted 4 units:
1.left
2.down
3.right
4.up

What is the product of the radical expression. (7-2square root) (8+2 square root)

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )