Which of the following is the graph of the solution of 3x+9≤30 ?

Does anyone know this
would gladly appreciate the help !

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books