*31. priya and ravish planned to participate in a cycle race to be organised for national integration. they decided
to practise on a circular path around a sports field. priya takes 18 minutes to complete one round, while rav-
ish takes 12 minutes for the same. suppose they both start at the same time and go in the same direction.
(a) after how many minutes will they meet again at the starting point?
(6) what is the value depicted by priya and ravish?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.