For the problems below, simplify if possible. if not, write "not possible".

11.) 3a - 5 - a

12. ) 5s - 9

13.) 3 * 2 * a * a * b

14.) 3(x - 1) + 5x

15. ) 7( 1 + 2) + 8c

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

Which is f(5) for the function –2x2 + 2x - 3?

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.