What is the proportiong of a normal distribution is lovcated between the mean and th z=1.40?

The value √10 and √15 are plotted on the number line

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start