What is the ratio for writing utensils to school supplies?

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"