R(x)=−7x−3 and q(x)=r(−3x). What equation shows the correct rule for the function q?

q(x)=21x+3

q(x)=21x+9

q(x)=21x

q(x)=21x−3

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

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

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?