Question

me ajudem na 4 5 6 pls

Answer 1

4) $\frac{4}{25}$ × 250 = 40

5) $\frac{3}{20}$ × 20 = 3

6) 516 - 430 = 86

$\frac{x}{100}$ × 430 = 86

4,3x = 86

x = 20