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1 / 10
Which sentence uses a colon correctly?
Use a colon after an independent clause to introduce a list. Option B incorrectly places colon after verb; C misplaces colon mid-list; D misuse of semicolon.
2 / 10
Solve: 2/(x) = 8 → x = ?
2/x = 8 → multiply both sides by x: 2 = 8x → x = 2/8 = 1/4. Keep algebra steps clear: isolate x via division.
3 / 10
Correct the agreement: “One of the students have forgotten their book.”
“One” is singular, so use “has.” Traditional singular pronoun “his” or singular “their” modernly used; best grammatical correction: “One of the students has forgotten his book.”
4 / 10
If the probability of rain is 30%, chance of no rain is:
Complement probability: P(no rain) = 1 − P(rain) = 1 − 0.30 = 0.70 = 70%. Probabilities sum to 100% for complementary events.
5 / 10
Which sentence corrects the misplaced comma: “She said, ‘however, we must leave now’.”
Capitalize first word of quoted sentence. Comma inside quote precedes capital. Also period inside closing quotation per US punctuation. Option D misses comma and wrong punctuation placement.
6 / 10
If 60% of a number is 48, what is the number?
Let n be number: 0.6n = 48 → n = 48/0.6 = 80. Multiply 80 by 0.6 gives 48. Conversion between percent and decimals is core skill.
7 / 10
What is the slope of the line passing through (2,3) and (5,11)?
Slope m = (y2−y1)/(x2−x1) = (11−3)/(5−2) = 8/3. Slope measures rise/run. Simplify fraction; 8/3 is final.
8 / 10
Which sentence contains a misplaced modifier?
“Driving to work, the rain soaked his car” incorrectly attaches “driving” to “rain.” The subject performing the action must be the person: revise to “While driving to work, he was soaked.”
9 / 10
Which number is the median of 3, 7, 9, 12, 20?
Median is middle value when data sorted. Sorted list: 3,7,9,12,20. Middle (3rd) is 9. Median is 9. Mean and mode would be different measures.
10 / 10
Which sentence is grammatically correct?
Each” is singular; it takes singular verb “was.” “Neither of the answers are” should be “is”; “either…or” requires verb agreement with nearer subject; “team” is collective—US usage uses singular.
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