The term "autonomous" refers to an ordinary differential equation that relates the derivatives of the dependent variable as a function *only* of the dependent variable. In other words, the ODE doesn't explicitly depend on the independent variable.
Examples:

is autonomous

is *not* autonomous
I think c and b are correct answers
Multiply the quantity in ounces (including the unit) by the fraction
(1 pint) / (16 fl oz) .
hence, the common ratio of the given G.P. is 3 or −3.
A is correct because the f represents the lilies and then you add the 15 because that is how much roses there are going to be. Lastly just multiply the ten that will give you the answer