what total amount is greater: $3.00 tripling each week for 4 weeks or $4.00, quadrupling each week for 3 weeks

Answer 1

3 + 9 + 27 + 81 = ?

4 + 16 + 64 = ?

Answer 2

check to be sure you don't want

3 + 9 + 27 + 81 + 243

4 + 16 + 64 + 256