Step-by-step explanation:
part A:
part B:
The answer is neither; you only have to substitute the ordered pair on the equation y=7x-2; ordered pair (a,b).Substitution: b=7a-2.
The answer is x=-7
8x-7x-2=-9
8x-7x=-9+2
-7
Answer:
0.8% of the people had a mild allergic reaction.