The graph above shows carmel's distance from home over a one-hour period, during which time he first went to the library, then went to the grocery store, and then returned home. which of the following statements could be true?
a) the grocery store is about 5 miles from carmel's house.
b) carmel traveled a total of 7 miles from the time he left home until he returned.
c) the grocery store is 7 miles farther from carmel's house than the library is.
d) carmel spent 10 minutes at the library and 15 minutes at the grocery store.