Andy currently has a balance of $4,585.92 in an account he has held for 21 years. He opened the account with an initial deposit of $3,278. What is the simple interest rate on the account? (2 points) a.1.9%
b.1.4%
c.4.8%
d.6.7%

The closest answer I got was D. Add 4,585.92+3,278, because he initial deposited the money into the bank.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)