Which is equivalent to the
expression below?
4x + 2x – 2y - y
A. -6(x + y). C. 6(x - y)
B. -3(2x + y) D. 3(2x - y)

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

What are the sotions to the quadratic equation 9x^2=4

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is