A deli sells 480 sandwiches per day at a price of four dollars each. Market survey shows that for every $.10 reduction in the price, 20 more sandwiches will be sold. How much do the deli charge in order to maximize revenue?

Ineed with the quizzes in apex mathematics ii

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units

Which angle has the same measure as the dehedral angle formed by the orange face and the purple rectangle