When 9x^2-100 is factored, it is equivalent to (3x-b)(3x+b). what is a value for b?

Anewborn baby had about 26,000,000,000 cells. an adult has about 4.94 times 10 to the 13 power cells. how many times as many cells does an adult have than a newborn

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Write the expression as a single natural logarithm. 2 in a - 4 in y