Answer:
a real number
Step-by-step explanation: You didn't list the choices- a real number is all positive numbers except 0
None, a triangle need to have angles measuring 180 degrees , its only possible if the triangle has three angles equaling 60
Answer:

Step-by-step explanation:

Answer:
1/2x+b=y
1/2*4+b=3
2+b=3
b=1
1/2x+1=y
Step-by-step explanation:
Answer:
DOMAIN: {4,5,6,7}
RANGE: {4,4.5,5,5.5,6,6.5,7}
Step-by-step explanation:
here is proof
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