A tortoise makes a journey in two parts; it can either walk at 4cm/s or crawl at 3cm/s. If the tortoise walks the first part and crawls the second, it takes 110 seconds
If it crawls the first part and walks the second, it takes 100 seconds.
Find the lengths of the two parts of the journey.

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.