To save for retirement, a student invests $70 each month in an ordinary annuity with 9% interest compounded monthly. Determine the accumulated amount in the students annuity after 40 years.

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,