HELP PLEASE

What is the result when the number 40 is increased by 50%?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

This is about circle theorems. someone asap : (

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