Despeja a X de las siguientes ecuaciones a partir de las propiedades de la igualdad. a) y=5x
b)3y=-2x
c) y=3x + 7
d) 5y=-3x-11​

We get that option (1) is a better 18th Birthday gift of child by Grandfather.

Step-by-step explanation:

Given that,

Amount deposited in bank at time of birth by Grandfather is $100.

And there is no other deposits and withdrawals for 18 years.

So,

                           Principal amount =$100

                                              Time = 18 years

               Rate of interest of bank = 10.5%

Option 1:- An account That grows by 10.5% each year

we know that Bank give compound interest on the deposit amount

then                   Compound interest =

∴                                                

Option 2:- An account that grows by $20 each year

Here,

                    Amount credited in account for 18 years = $20

So,                Total amount after completion of 18 years =

                                                                                           =

Hence,

We get that option (1) is a better 18th Birthday gift of child by Grandfather.