What is the mean of the set of numbers?

{–8, –4, –3, –11}

a.
–6.5

b.
–4.5

c.
4.5

d.
6.5

(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 ?

When only separate discreet points are graphed it is called?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have