Hello,
f(n+1)=f(n)-2
f(1)=10
f(2)=8
f(3)=6
...
Let's figure this out. Step by step:
P / 6 = 9
P = 6(9)
P = 54 is your answer.
I hope this helps :)
9 x 15 = ( 9 x 9) + (9 x 15)
Answer:
Rate of change of profit for this period = $2750 / month
2x-y=-8
+
y=2
2x=-6
x=-3
2*-3-y=-8
-6-y=-8
-y=-2
x=-3 and y=2