Anna is going to play guitar in her school's annual concert. if she starts by practicing for one hour per day and increases the time by 30 minutes each day, how long will she practice on the seventh day?

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