Rodrigo is a salesman who earned a base pay of $38,800 and was paid commission of 14% for each book set he sold. If x represents total sales in dollars, then which of the following equations best represents Rodrigo's total pay in dollars? O A y=38800x+0.14 O B. y= 38800 +0.14% O c. y = 38800 + 14x 0 D. y= 38800 +0.04

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.