Karen wants to purchase a new vehicle in 2 years. She wants enough cash for a $12,000 down payment. How much should she deposit each week in an account that pays 4.2% interest compounded weekly in order to reach her goal in 2 years? O $97 O $123 O $111 $79 Find the simple interest on a $6,000 principal deposited for 42 months at a rate of 3.4%. * O $8,642