Sigma notation- will mark brainliest!

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Which statement about the annual percentage rate (apr) is not true?

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.