30 divided by 12 will give you the percentage 40% , or c
Answer:
b = -1.4
Step-by-step explanation:
long way
12 x 11 x 10 x 9 x 8 x 7 x6 x5 x4 x3x2/ 10x9x8x7x6x5x4x3x2x
but you can shorten that by crossing out identical numbers so you get 12 x 11
12 x 11 = 132 combinations
(0,5) (-3, -1) (1, 7) (2, 9) (-5, -5)