Answer:
-1 -5 +9 = 3
Step-by-step explanation:
Area=basexhigh so, Area= 6x3 , so answer will be 18
13-k
Explanation: it’s just 13 minus the number k
Answer: -3/2
Step-by-step explanation:
The axis of symmetry, and thus the x-coordinate of the vertex, is given by 
So, the answer is 
The answer is 7
13-6 is 7