Answer: 6 years
Step-by-step explanation:
Formula to calculate compound amount: 
, where P= Principal , r=rate of interest, t= time
Given: P = £400, r = 3% = 0.03 , A= 475
Required equation: 
Taking log on both sides , we get
Hence, he needs to invest the money for 6 years to get atleast £475.
Slope is (24--31)/(-6-5) = 55/-11=-5
y-24=-5(x--6)
y-24=-5x-30
y=-5x-6
A.
8z+3 > 3z-17
subtract 3 from both sides
8z > 3z -20
subtract 3z from both sides
5z > -20
divide both sides by 5
z > -4
I think it is -2 because you move 4 to the other side by subtracting so it’s going to be a negative.
