va rog rapid sunt la test

1. 12
2. 13 -1/9=12/9 =1,33
3. 4x=18+6
4x=24
=>24/4=6
4. p=2(L +l)
=2×(8+6)= 2×14= 28
5. A=c1×c2/2= 9×6/2= 52/2=27