What is a variable?
a.
a variable is an unknown number or value represented by a letter
c.
a variable represents a change in value
b.
a variable always represents the total amount
d.
a variable is always represented by the letter x

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?