b. ( 1265(1+0.115times frac (87)/(365)))(1+0.125times (4.3)/(365))

Here's the solution to the calculation:b. 1265(1+0.115\times \frac {87}{365})}{1+0.125\times \frac {43}{365}} 0.115 \times \frac{87}{365} = 0.027260274 1 + 0.027260274 = 1.027260274 1265 \times 1.027260274 = 1299.778082 0.125 \times \frac{43}{365} = 0.014712329 1 + 0.014712329 = 1.014712329 \frac{1299.778082}{1.014712329} = 1280.656784 1280.66.**