Question

va rog ajutați-ma,urgeeent​

Answer 1

$ex.5$

$x + x + 2x = 60$

$x = 15$

$ex.6$

$15 \times 15 \times 30 = > \\ 225 \times 30 = > \\ 6750 \: cm$

$l = \frac{72}{8} \\ 72 \div 8 = > \\ 9$

$p = 4 \times l = > \\ 4 \times 18 = > \\ 72 \: cm$