Last summer, Jesse’s family drove to visit his grandmother. Jesse kept track of how far they drove each day. Monday: 242 mi. Tuesday: 324 mi. Wednesday: 212 mi. Thursday: 363 mi. Friday: 132 mi. Use front-end estimation to find a reasonable estimate of the total distance Jesse’s family traveled.

A) 1000 mi.
B) 1100 mi.
C) 1200 mi.
D) 1300.

Me because some of question i don’t understand

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.