-1.7×-6 is the answer. Hope this helps.
Answer:
1. No
2. No
3. No
4. Yes
5. Yes
Step-by-step explanation:
5.25
12
sum of all angles of triangle =180
3x-12+2x+11x=180
16x-12=180
16x=192
x=12
P(7,4)= 840