Answer
$ab/c\approx 1.651674743 \times 10^{-32}$
Work Step by Step
$ab/c\approx (0.00000293)(1.528 \times 10^{-14}) \div (2.8064 \times 10^{12})$
Write the decimal in scientific notation to have:
$\\ab/c\approx (2.93 \times 10^{-6})(1.528 \times 10^{-14}) \div (2.8064 \times 10^{12})$
Use a calculator to have:
$\\ab/c\approx 1.651674743 \times 10^{-32}$