Maria opens a savings account with 50an then saves 19 each week
If Maria saves 19 each week, the amount in her savings account will increase by 19 each week. After one week, she will have 50 + 19 = 69 dollars.
After two weeks, she will have 69 + 19 = 88 dollars.
After three weeks, she will have 88 + 19 = 107 dollars.
And so on.