Find the missing numerator and denominator.
÷ 
= 
A. 
B. 
C. 
D. 
Answer: B
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Find the standard deviation. Round to one more place than the data.196, 205, 215, 185, 229, 278, 165
A. 36.2 B. 30.2 C. 12.7 D. 33.1
Which subtraction model (take-away, missing addend, comparison, or measurement) corresponds best to the problem?Last year the hatch-back model of a new car cost $18,022. This year's model costs $19,256. How much more does this year's model cost?
A. Measurement B. Missing addend C. Take-away D. Comparison
Solve.The effective yield from a grove of miniature pear trees is described by the equation E = x(700 - x), where x is the number of pear trees per acre. What is the maximum effective yield? How many pear trees per acre should be planted to achieve the maximum yield?
A. Maximum yield = 30,625 number of trees per acre planted = 175 B. Maximum yield = 122,500 number of trees per acre planted = 350 C. Maximum yield = 122,500 number of trees per acre planted = 175 D. Maximum yield = 122,500 number of trees per acre planted = 700
Add.12 + (-22) + 19 + (-13)
A. -42 B. 66 C. -16 D. -4