Step 1 :Calculate the future value of the bond investment: \(FV = P(1 + r)^n\) where \(P = 15000\), \(r = 0.0255\), and \(n = 14\)
Step 2 :Calculate the future value of the monthly deposits using the formula: \(FV = PMT\frac{(1 + r)^n - 1}{r}\) where \(PMT = 80\), \(r = 0.002458333\), and \(n = 84\)
Step 3 :Add the future values of both investments to find the total worth in 7 years: \(FV_{total} = FV_{bond} + FV_{monthly}\)
Step 4 :\(\boxed{28,793.84}\) is the total worth of Andre's investments in 7 years when he turns 65