1: yes AAS
2: yes SSS reflective
3: yes ASA
4: yes HL reflective
5: no SSA vertical
6: yes SAS vertical
Not sure on vocabulary for 1 and 3 sorry:(
10 is a good number because is what adds to 100 and the number 100 is lucky. This is what i think.
Answer: B (2,1)
You know what y is (x-1) so you substitute that for y in the other equation.
3x+ ((4)(x-1))=10
3x+4x-4=10
7x=14
x=2
Then put x=2 into y=x-1
y=2-1
y=1
3610.201 this the answer if u want in de imal