Which expression is equivalent to 25% of the product of 84 and x?

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

Im so bad at fractions they are not my best math thing to work on

Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1