Solve with distributive property, simplify 10 pts! !

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

(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 ?

If 3x+8=3x+8 is it one solution or no solution