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

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Harry is at the depot in dover and has deliveries to make in edinburgh, glasgow and aberdeen. from dover which of the deliveries is the shortest distance?