Answer:
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
All real numbers is the answer
i'm doing cross-multiplication for this problem:
multiply 18 · 12, which is 216
divide 216 ÷ 10, which is 21.6
, is the final answer