Question

please answer both 3 and 4 ​

Answer 1

Answer:

iii) 2.5

iv) 0.062

Step-by-step explanation:

iii) (1/2*1/5)^-1 / 1/4

    1/10^-1 / 1/4

    10/1/4

    2.5

iv) 3/8 / 3/2

    0.062

Answer 2

=(1/2×1/5)^-1÷1/4

=2×5÷1/4

=10×4/1

=40

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