Simplify.23 + 17 ? 30
A. 421
B. 533
C. 1200
D. 70
Answer: B
Mathematics
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Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. -2550 B. -2548 C. -2601 D. -2499
Mathematics
Use front end rounding to estimate the sum or difference. Then find the exact answer to the problemCarlos's grocery bill was $8.82. He gave the clerk a $20 bill. How much change should he receive?
A. Estimate: $11; exact: $11.18 B. Estimate: $11; exact: $10.18 C. Estimate: $9; exact: $8.82 D. Estimate: $11; exact: $11.17
Mathematics
Differentiate. 
What will be an ideal response?
Mathematics
Identify the place value of the digit 5 in the decimal number. 6.98507
A. thousands B. thousandths C. hundredths D. tenths
Mathematics