I don't understand this... help?

Sort each of the functions f: IR → IR in ascending or descending terms.
a) f (x) = -2.4x + 12

b) f (x) = 5 / 9x - 2 c) f (x) = 1 + 2x

d) (x) = - 0.5x + 3

total of apples - take away four

6-4 = 2

answer is 2 apples

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076