Answer:
12 i think. I used a calculator ngl. but I think it's 12$
Answer:
Neon is stable, hence has no charge.
Oxide (O2-) has a charge of -2
Cooper (Cu2+) has a charge of +2
Tin (Sn2+) has a charge of +2
hence overall charge = -2+2+2
<em><u>Over</u></em><em><u>all</u></em><em><u> </u></em><em><u>charge</u></em><em><u> </u></em>= +2
The soultion for the set is the second one
hi
4 entries are 24 so one entry is 24/4 = 6
so 7 friends pay 6*7 = 42
