18.{420:6+[150-(68.2-2mũ3 .5)]}

Question

18

Answer 1

18.[420:6+(150-68.2-2^3.5)]

=18.[420:6+(150-68.2-8.5)]

=18.[420:6+(150-136-40)

=18.(420:6-26)

=18.44

=792