The altitude at sea level is 0 feet. A diver at 90 feet below sea level swims to 20 feet below sea level. Which statement describes the diver’s change in altitude? A. The diver swam upward 110 feet. B. The diver swam upward 70 feet. C. The diver swam downward 110 feet. D. The diver swam downward 70 feet. Show how you got your answer.

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no