Question

(PICTURE ATTACHED) please help

Answer 1

(800) x (3 x 10^(-1)))) = 240

Answer 2

(800) × ( 3 × 10^-1)

= 8 × 10 ^2 × 3 × 10^-1

= 24 × 10^(2 - 1)

= 24 × 10^1

= 2.4 × 10^2

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