~PLEASS HELP FAST~ Determine weather y varies directly with x. If so, find the constant of variation and write the equation

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

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?