Two phone companies are advertising new rates to their customers. company a charges a sign-up fee of $8.00 and $0.40 per minute of talk time. company b charges a sign-up fee of $12.00 and $0.20 per minute of talk time. how many minutes must customers talk in order for the total cost at company a and company b to be the same?

no idea

step-by-step explanation:

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