Answer:
D :D
Step-by-step explanation:
-2x+7=13
-2x=-20
10
<h3><u>Answer</u>

ΔABF is an isosceles right triangle,BC=20-18

</h3>
Answer:
3.5
Step-by-step explanation:
27-13=14 14/4=3.5
Answer:
21
Step-by-step explanation:
PEMDAS:
Parenthesis
Exponent
Multiplication and Division
Addition and Subtraction
21-3+3
18+3
21
Hope this helps!