Solve the problem.Elsie took her father out to dinner for his birthday. The food bill was $52.17. The bill for drinks was $11.21. How much was Elsie's 15% tip, rounded to the nearest dollar?
A. $2
B. $88
C. $8
D. $10
Answer: D
Mathematics
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Write the number in scientific notation.0.00207
A. 2.07 × 10-4 B. -2.07 × 103 C. 2.07 × 10-3 D. 2.07 × 10-2
Mathematics
Find the number of subsets of the set.{math, English, history, science, art}
A. 24 B. 32 C. 16 D. 28
Mathematics
Solve the quadratic equation using completing the square.a2 + 2a - 3 = 0
A. {
}
B. {1, -3}
C. {-1, 3}
D. {0, -3}
Mathematics
An arithmetic sequence is given. Find the common difference and write out the first four terms.{sn} = {ln 6n}
A. d = ln 6; s1 = ln 6, s2 = 2 ln 6, s3 = 3 ln 6, s4 = 4 ln 6 B. d = ln 6; s1 = ln 6, s2 = ln 12, s3 = ln 18, s4 = ln 24 C. d = n ln 6; s1 = ln 6, s2 = 2 ln 6, s3 = 3 ln 6, s4 = 4 ln 6 D. d = n ln 6; s1 = ln 6, s2 = ln 12, s3 = ln 18, s4 = ln 24
Mathematics