Answer
Please see the work below.
Work Step by Step
We know that
a. $\frac {$8.71\times 0.0301}{0.031}=8.5$
b. $0.71+92.2=92.9$
c. $934\times 0.00435+107=111$
d. $(847.89-847.73)\times 14673=2.3\times 10^3$
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