Question

me ajudem nisso pls​

Answer 1

3)

a.

x+2x+x+y

b.

5+2(5)+5+12

5+10+5+12

32 cm

4)

a.

m+p=11

b.

0,50m+1,20p=9,00

5)

(3,4) e (-3,8)

2(3)+3(4)=18

6+12=18

18=18

2(-3)+(8)=18

-6+24=18

18=18