Best friends, Todd and Alexis, each receive bonus checks in the same amount. They decide to use their bonuses toward a savings plan for the next World Cup Soccer event in Russia. Todd's plan is to start with $1,050 in a jar and add $32 every year for 4 years. Alexis deposits $1,050 into a savings account that pays 3.2% interest annually for 4 years. Whose plan is best modeled by an exponential function, and which friend would save more after 4 years?