I think the correct answer would be, I did 42 minutes + 18 minutes. So it took Marty 60 minutes to read his book and correct his report.
Hope this helped! ;)

the numbers should be

or

because you move the point 18 places to obtain 9.15(the dot is initially at the end of the number)
Answer:
(x+5)
Step-by-step explanation:

Here, (x + 5) matches your answer choices
Answer:
2 x 10 ^ 6
Step-by-step explanation:
Answer:
2nd one
Step-by-step explanation:
as it is a negative number so the point on the number line should move backwards