Solve the problem.A particular type of pen costs 51 cents. If n represents the number of pens purchased, the formula for the cost is 
. Which is the independent variable?
A. Total cost
B. Cost of each pen
C. Number of pens
Answer: C
Mathematics
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Find the derivative of y with respect to the independent variable.y = 6x
A. 6x B. 6x ln x C. x ln 6 D. 6x ln 6
Mathematics
Provide an appropriate response.Make up a word problem which uses the measurement model of subtraction to illustrate 18 - 11.
What will be an ideal response?
Mathematics
Round to the place value indicated.5,997 to the nearest ten
A. 6,000 B. 5,900 C. 5,990 D. 5,000
Mathematics
Provide an appropriate response. Solve the system of equations using the addition method: 2x + 5y = 193x + y = 9
A.
(-2, 15)
B.
C.
(4, -3)
D.
(2, 3)
Mathematics