Answer:
-20
Step-by-step explanation:
Follow the PEDMAS order (from top to bottom):
Parentheses
Exponents
Division and Multiplication
Addition and Subtraction
(-5 × 9 - 1) ÷ 2 + (5)2 - 7
(-45 - 1) ÷ 2 + 10 - 7
-46 ÷ 2 + 10 - 7
-23 + 10 - 7
-13 - 7
-20
Answer:
What do you need help on?
Step-by-step explanation:
No because if u count the corners there are 4 right angles
I am in algebra I too. what do you want to know. text me on message and I will explain it to you. do you agree?
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