Three consecutive multiples of 10 have a sum of 600. What is the greatest of these numbers, and why?
E. 190
F. 200
G. 210
H. 220

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.