Answer which of the binomials below is a factor of this expression?
25x² - 9y² z²
a. 5x - 9yz
b. 5x² - 3y² z²
c. 5x² - 9y² z²
d. 5x² - 9y² z²

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

This is different from the first one can someone me

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.