Answer:
1)2.775
2)2.52
Step-by-step explanation:
1) so we know that the depth of the river raises ll% in 1847 so
2.5*0.11=0.275
0.275+2.5=2.775
Is 1847 the river was 2.775 feet deep
In 1848 the depth dropped 9% so
0.09*2.775=0.24975
2.775-0.24975=2.525252
