Leanna opens a savings account with an initial balance of 100$. She then Deposits 50$ each month. Use an equation, a table and a graph to explain the relationship between the amount of money in the account, a, and the number of months since Leanna opened the account, m

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?