Agent Hunt is transferring classified files from the CIA mainframe into his flash drive. S represents the size of the files on the drive (in megabytes) after t seconds. S = 5t + 45 What was the file size on the drive before the transfer? please help :)​

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?