Find the probability that a randomly selected point within the circle falls in white area round to the nearest tenth of percent

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

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