Rock musician Donny West is paid 15% on his tour video online sales. Last year fans downloaded his songs 991,000 times, and he also sold 550,000 videos. The songs are downloaded for $1.09 each and the videos were downloaded for $9 each.
a. What was the total monetary amount of song downloads?
b. What was the total monetary amount of video downloads?
c. What was the combined total value of song and video downloads?
d. How much did Donny West receive in royalties last year?