Question

Por favor me ajudemmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Answer 1

Explicação passo-a-passo:

$c)$

$( - \dfrac{3}{4} ) \div ( + \dfrac{5}{3} )$

$( - \dfrac{3}{4} ) \times ( + \dfrac{3}{5} )$

$- \dfrac{9}{20}$

$b)$

$( - 0.3) \div ( + 0.2)$

$- (0.3 \div 0.2)$

$- 1.5$