P of 1st white marble = 4/ 12
and P of 2nd white in a row = 3 /11
total = ( 4/12) * ( 3/11)
= 1/11
hope it helped
To do this you need to work backwards. if you note the number as 'n' you can put
7n = 5600
to find n you simply divide both sides by 7 getting
n = 5600/7
n = 800
A=3,500×(1+0.011÷12)^(12×4)
A=3,657.36
Interest earned
=3657.36-3500=157.36
I think it would be $77.00
