The number of fish in a lake is decreasing by 400 every year, as described by the function below. f(1)=8200
f (n+1)=f (n) -4
What will be the value of f(5)?

6200

6600

7000

7800

225/100 of last years cost. write each fraction as a decimal and as a percent

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this