Answer:
b squared + 20b+ 100
Step-by-step explanation:
multiply Using the FOIL method
first inner outer last
so
b times b = b squared
10 times b equals 10b
b times 10 equals 10b (again)
10 times 10 equals 100
add up all the answers to get the final answer
b squared + 20b+ 100
continuouslyUsing the formula for a compounded continously

where P is the amount on the account after t years compounded at an interest rate r when Po is invested in an account.
then,