If D = Z + 6 and C = -2 + Z - Z^2, find an expression that equals 3D + C in standard form

Select the best attribute for the angle pair formed by two parallel lines intersected by a transversal.

What is the 12th term of b(n)=-4-2(n-1)

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?