Acertain fish can swim 5 1/2 times faster than a person. if a person can swim 5 2/7 miles per hour, how fast can the fish swim? estimate the answer. then find the exact answer.

I'd estimate about 29 or 30 miles per hour.

The exact answer is 29.0675 miles per hour

5 2/7 x 5 1/2 = 29.0675.

Use the formula of the present value of annuity ordinary
Pv=pmt [(1-(1+r)^(-n))÷r]
Solve for pmt (amount of annual withdrawal)
Pmt=pv÷ [(1-(1+r)^(-n))÷r]

Now solve for the first plan
Pmt=28,000÷((1−(1+0.058)^(−4)) ÷(0.058))=8,043.59
Yield
8,043.59×4=32,174.36Answer

Solve for the second plan
Pmt=28,000÷((1−(1+0.07083)^(−3))
÷(0.07083))=10,685.63
Yield
10,685.63×3=32,056.89

So the answer is d