Rewrite the following number using digits.Six hundred thirty-eight thousand,nine hundred ninety-seven
A. 638,977
B. 638,997,000
C. 638,000
D. 638,997
Answer: D
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Find the total area of the region between the curve and the x-axis.y = 
; 1 ? x ? 3
A. 
B. 
C. 3
D. 
Solve the problem.At a garage sale, the most expensive item was marked $25.00 more than the cheapest item. The sum of the two items was $26.90. Find the cost of the least expensive item.
A. $3.80 B. $26.90 C. $22.10 D. $1.90
Collect like terms.
x3 - x + 9 + 
x3 + 4x - 2
A. 
x3 + 5x+ 7
B. 
x3 + 3x + 11
C. 
x3 + 3x + 7
D. 
x3 + 3x + 7
Provide an appropriate response.In testing an experimental diet for goats, it was determined that the (average) live weight w (in kilograms) of a goat was statistically a linear function of the number of days d after the diet was started where 0 ? d ? 100. The weight of a goat starting the diet was 12 kg and 25 days later it was 20 kg. Determine w as a linear function of d and find the average weight of a goat when d = 80.
What will be an ideal response?