Pls someone answer this

Three children each had the same amount of money in their savings account. one of the children withdrew three quarters of her moneyand spent it all on a $100 sports jersey. what was the total amount of money originally in the accounts?

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76