Please help I will mark branliest

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

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?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.