Look at the image please worth points (don’t reply if you don’t have an answer)

i believe it is 17.

Step-by-step explanation:

if c is 8 am, then 7 am must have been at 10. so add up all the numbers from then and further back, and you get 17. (it could also be 7 so don't count on it)

hope this helps! if correct pls mark brainliest!

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation: