Which equation is equivalent to ? 3 points question 2 which steps can be used to solve the equation ? select all that apply. 4 points question 3 what are the solutions to the equation ? r = -9 r = -3 r = 3 r = 9 3 points question 4 solve the equation shown for x: . 9 -9 -9.75 3 points question 5 how many solutions does the following equation have? 0 1 2 infinitely many 3 points question 6 what is an extraneous solution to the equation ? b = -1 b = -2 b = 1 b = 2 3 points question 7 a math teacher finishes a specific homework assignment three times as fast as the quickest student. if it takes the teacher 40 minutes to finish the assignment, which of the following equations can be used to determine how many minutes it would take for both the teacher and the quickest student to finish the assignment if they work together? 3 points question 8 two rectangles are placed inside the other as shown in the following figure. if the ratio of the shaded area to the white area is , what is the value of x? shaded rectangle inside a larger rectangle. shaded rectangle has dimensions x plus 10 and 2. larger rectangle has dimensions 3x plus 10 and 5.