Acar uses one gallon of gasoline for every 20 miles it travels. if a gallon of gasoline costs $3.98, how much will the gas cost, to the nearest dollar, to travel 180 miles? 9 36 45 80

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

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)