Question

gente me ajuda air ​

Answer 1

Resposta:

01) $20\%\:700$

$\frac{1}{5}700=140$

02) $x+3+25=84\quad :\quad x=56$

3)

a) $\frac{100}{5}+5\cdot \:7=55$

b) $7\cdot \:2+35+20-15=54$