If the quiz is worth 50 points and each question is worth 10 that means for every question he could’ve missed would be taking away 10 from that 50. So lets say if he misses 2 questions. 2 x 10 would be 20. You take away 20 from 50 which would be: 50 - 20 = 30. And it goes on from there.
Hope that helps!
I got 65/153 since you actually multiply by the reciprocal of the second fraction.
Answer:
A cylinder with a circumference of about 60 units.
Answer:

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Work Shown:

You could expand terms out and simplify, but I think it's more handy to leave it in this form so you can easily spot the center and radius from a glance.
Answer:
Daeja is correct.
Step-by-step explanation:
Equation: 6 = 1/2s
Solve:
(2)6 = 1/2s(2) <== multiply both sides by 2
12 = s or s = 12
Therefore, Daeja is correct.
I multiplied both sides by 2 to isolate s, and 2 ⋅ 6 is 12.
Hope this helps!