Answer:
15.8
Step-by-step explanation:

It is called Ecological Succesion hope that helped:)
Answer: 36
Step-by-step explanation:
1) substitute x for 6
get f(-5)=6(1--5)= 6+30=46
Y = 1.25x + 30 <== ur function
for 3 hrs.....x = 3
y = 1.25(3) + 30
y = 3.75 + 30
y = 33.75 <=== for 3 hrs
Take the y and x and 4 as a common factor and you will get 4xy(2yz+3x) the second one is the answer