Solve. Write a mixed numeral for the answer.Denise's triplets weighed 3
lb, 4
lb, and 4
lb at birth. Find their average birth weight.
A. 4
lb
B. 4
lb
C. 4
lb
D. 3
lb
Answer: B
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The following table shows average rice yield, in tons per hectare, in Asia ?t years since 1980.
510152025
3.323.613.733.954.11?
Use the average rate of change to estimate the yield in 1993.00.
?
A. 4.37 tons per hectare B. 3.68 tons per hectare C. 3.75 tons per hectare D. None of the above
Factor out the greatest common factor.3x3 + 12x
A. 3x(x2 + 4x) B. 3x(x2 + 4) C. 3x2(x + 4) D. 3x(x2 + 9x)
Solve the problem.A lumber yard has fixed costs of $2590.80 per day and variable costs of $0.34 per board-foot produced. Lumber sells for $1.54 per board-foot. How many board-feet must be produced and sold daily to break even?
A. 1378 board-feet B. 7620 board-feet C. 2159 board-feet D. 1439 board-feet
Solve.Parts for an automobile repair cost $180. The mechanic charges $30 per hour. If you receive an estimate for at least $360 and at most $450 for fixing the car, what is the time interval that the mechanic will be working on the job?
A. Between 1 hr and 9 hr B. Between 12 hr and 15 hr C. Between 6 hr and 9 hr D. Between 1 hr and 6 hr