4×3.8+26×0.

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4×3.8+26×0.4×3.8+26×0.4×3.8+26×0.7.4×3.8+26×0.38=7.4×3.8+2.6×3.8=3.8×(7.4+2.6)=3.8×10=387.4×3.8+26×0

4×3.8+26×0.
4×3.8+26×0.

4×3.8+26×0.
7.4×3.8+26×0.38
=7.4×3.8+2.6×3.8
=3.8×(7.4+2.6)
=3.8×10
=38

7.4×3.8+26×0.38
=7.4×3.8+2.6×3.8
=(7.4+2.6)X3.8
=10X3.8
=38

=74*0.38+26*0.38
=(74+26)*0.38
=100*0.38
=38