What is 7x²-4+6x³-4x-7 in standard form

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.