Hello, i need help with those couple of questions
Thanks in advance.
Sera’s grandparents put $1000 into a savings bank account
for her every year since her age of 10. The account pays
interest at 6% per year. (a) How much money is in the
account at her age of 18. (b) Find the estimate age in year,
that the amount in the account exceeding $20,000
Given that the expansion of (1 + ax)^n begins 1 +
36x + 576x^2, find the values of a and n.
Simplify (1 – x)^8 + (1 + x)^8. Substitute a suitable
value of x to find the exact value of 0.99^8 + 1.01^8