Solve.Find which is the better buy (lower cost per ounce) by finding each unit price rounded to three decimal places if necessary. Assume that different sizes of the same brand are being compared. Cream Rinse: $6.71 for 12 ounces $5.50 for 10 ounces
A. $5.50 for 10 ounces
B. $6.71 for 12 ounces
C. Both cost the same per ounce.
Answer: A
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Solve the problem.Evaluate 
at t = 3? for the function w(x, y) = x2 - y2 - 9x; x = cost, y = sin t.
A. -13 B. -11 C. 0 D. -7
Factor completely.60x2 + 35xy + 5y2
A. 5(3x + y)(4x + y) B. 5(3x - y)(4x - y) C. (3x + y)(20x + 3y) D. (15x + 5y)(4x + y)
Find the perimeter (P) of each figure.
A. 420 m B. 36 m C. 94 m D. 50 m
The proprietor of the Showplace, a video store, has estimated that the rental price p (in dollars) of prerecorded video discs is related to the quantity x rented/day by the demand equation 
. Currently, the rental price is $4/disc.
?
Is the demand elastic or inelastic at this rental price?
?
__________
?
If the rental price is increased, will the revenue increase or decrease?
?
__________
What will be an ideal response?