I need a correct answer of Edith each sentence for pronoun usage.
1. The instructor made clear to everyone what they had to do to pass the class.
2. Marcie signed up for advanced classes without consulting her advisor, which was a big mistake.
3. The computer did not allow access to students which tried to register before registration opened.
4. Many people shy away from the old because they think of it as being senile and withered.
5. It did not get above freezing today, so it is still too dangerous to drive on the back roads.
6. We always wait until the day before Christmas to buy a tree because they are discounted by then.
7. To end the strike, the union approved the agreement and told their members to go back to work.
8. Everybody agreed to do the maintenance ourselves rather than pay someone to do it.
9. Physical activity is good for you, but people lack the discipline to exercise as much as they should.
10. Mr. Roberts told his son that he didn't know to dance.
Answer:
the first box maybe
Step-by-step explanation:
C(x) = 400 + 20x - 0.2x²
c(30) = 400 + 20(30) - 0.2(30)²
= 400 + 600 - 0.2(900)
= 1000 - 180
= 820
It costs $820 when 30 radios are produced.
Marginal cost is how much it would cost to make one MORE of the same product so now we find how much it costs to produce 31 radios and compare the two.
c(31) = 400 + 20(31) - 0.2(31)²
= 400 + 620 - 0.2(961)
= 1020 - 192.2
= 827.8 or ≈828.
Now we find the difference which means we subtract the two.
828 - 820 = 8.
Your marginal cost is $8.
To compare we can also do 29 radios.
c(29) = 400 + 20(29) - 0.2(29)² = 811.8 or ≈812
820 - 812 = 8.
