Question 10 (1 point) A survey is conducted to determine whether
more money should be spent in schools for the
purchase of computers. Which of these questions
is best to use?

Math each whole number with a rational,exponential expression

What ratio is proportional to 18/21

Which function has an inverse that is also a function? a.{(-4,3), (-2, 7), (-1,0), (4, -3), (11, -7)} b.{(-4, 6), (-2, 2), (-1, 6), (4,2), (11, 2)} c.{(-4,5), (-2, 9), (-1,8), (4, 8), (11,4)} d.{(-4,4), (-2, -1), (-1,0), (4, 1), (11, 1)}