An angle measures 172° less than the measure of its supplementary angle. What is the measure of each angle?

(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 ?

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

5x−4≥12 or 12x+5≤−4 can you with this problem