What are the values of r and a, for 20.45(8)*+'?
X=1

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Which one is the correct answer, and why?