I need this answer quick

B. 15 miles per hour (mph)

Step-by-step explanation:

malcom's family: 65 mph

theo's family: 50 mph (look at the graph: where the line is above 1, it is level with 50, witch means they were going 50 mph)

65 - 50 = 15

hope this helped! :D

the square root of what number? if you add that, then someone will probably answer the question.

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11