Find the first four terms of the arithmetic sequence when a1 = 3 and d = 2. 2, 5, 8, 11
3, 5, 7, 9
1, 3, 5, 7
3, 6, 12, 24

Simplify the expression. -2/5(10+15m-20n)

(x-5)1/2+5=2 what is a possible solution?

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.