For a camping trip, three scoutmasters are each driving a portion of the 150 miles to a campground. Mr. Jimenez drives 3/10 of the distance. Mr. Roberston drives 40% of the distance. Mr. Achebe will drive the rest of the distance.

Every time you drive you will experience a combination of driving conditions and environments.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?