Help me pls need help

Answer:
Step-by-step explanation:
52+-3
-55
2.2(6) +3(7) - -3
12+21- -3
-36
3. 5(-3) +(7-6)
-15+1
-16
4. (6) ²+(7) ²-10(-3)
12+14- -13
-39
5. 3(7) +(6) 2 =21 +12=33
-3 -3 -3