Answer:
r=-11
Step-by-step explanation:
Answer:
Step-by-step explanation:

By the binomial theorem,

where

Then the coefficients of the
terms in the expansion are, in order from
to
,





A equivelent ratios are just like equivelent fractions. If two ratios have the same value,then they are equivelent,even tho they may look different! A ratio table is the relation betwen two similiar magnitudes with respect to the number of times the first contains the two.
Answer:
The final balance is £1,720.
The total compound interest is £520
you don't even to round it at all