If the ages in a classroom were 11, 12, 12, 13, 13, 14 - what would the median age be if you added someone that was 10 years old?

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

The graph shows the amount of total rainfall at each hour what was the total rainfall amount after three hours

Need me know if option a,b,c are wrong so ik its d