It well be B.) they all have a factor of 2
Amplitude: 4
If midline means center, it is -5
I'm also implying that there is an x in cos(4x)
Exterior angles are complementary to the opposite interior angle
You first multiply 6 and 8 to see how many people are put in the vans without rented a van. This would equal 48. You then subtract 48 from 59 to see how many people still need to be in a van. This would leave you with 11 people. Then you divide 8 from 11 to get 1 3/8. This means you need 2 vans to fit everyone.
