Answer:
(a) Not confident.
(b) Confident A would win.
(c) Confident A would win.
(d) Not confident.
Step-by-step explanation:
In order for us t be confident that Candidate A will win, Candidate A's percentage minus the margin of error must be higher than Candidate B's plus the margin of error.
(a)

Not confident.
(b)

Confident A would win.
(c)

Confident A would win.
(d)

Not confident.
It is the D answer.
Even though I cannot see the second equation, I know that this must be it. It is the only set of equations that properly states that she must work less than 15 hours combined (b + t)
Answer:
1. 20² = 400
2. 4⁴ = 256
3. 2⁷ = 128
4. 3⁵ = 243
5. 10³ = 1,000
6. 7⁶ = 117,649
7. 25³ = 15,625
8. 5⁷ = 78,125
9. 6.5² = 42.25
i wasnt really sure what you meant but i hope this helps