Question

Solve the following questions plzzz

Answer 1

Answer:

my be my answer is not correct but

my answer is 7.56

Answer 2

Step-by-step explanation:

I feel it is simple multiplication as nothing has been provided.

$( \frac{5}{7} {l}^{2} {m}^{2} ) \times ( \frac{3}{9} {l}^{3} m) = \frac{5 \times 3}{7 \times 9} \times {l}^{2 + 3} {m}^{1 + 2} \\ rhs= \frac{5}{21} \times {l}^{5} {m}^{3}$