Write the expression in simplest form.

(-11/2x + 3) -2 (-11/4x - 5/2) = ?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up

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