Find the value of \((1/2)^{-4}+(1/4)^{-4}+(1/7)^{-4}\).
2683
2670
2678
2673
\(2^4+4^4+7^4=16+256+2401=2673\)
Evaluate: (-9) - (-60) $ \div $ (-10) + (-3) × 8
Find the value of: [836 ÷ {30 + 2 × ( 7 − 3 )}].