Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this year?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?  

The height, h, of a cylinder is 5 units less than 3times its radius, r. which expression represents the height of the cylinder in terms of its radius