With math! 25 points on the line!
mr. baumbach plans to leave his estate to four charities. one charity gets 1/4 of his estate, the second gets 1/16, and the third gets 3/8. how much does the fourth get? explain.

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Ineed if you could explain and give me the answer you! this needs done

The volume of a cube is 8 in to the 3rd power. how long is each side?