Answer:
1: 
and the same, but its -3 instead of 3
2: x=9-3y
$35.00 x .20 = $7
So the discount would be $7 off of $35, for a final sale price of $28
Answer:
No image or answer choices
Step-by-step explanation:
Answer:
Disagree
Step-by-step explanation:
Remember rotating 90 degrees means (y,-x)
A= (1,2)
A'= (2,-1)
So it is disagreed.
Hope this help :)
Answer:
-21
Step-by-step explanation:
- * + = -
- * - = +
+ * + = +
Here + * - = -
7* 3 = 21 and sign is -ve
