A rectangular enclosure must have an area of at least 600 yd2. If 140 yd of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
Select one:
A. 35 ≤ w ≤ 60
B. 10 ≤ w ≤ 35
C. 10 ≤ w ≤ 60
D. 0 ≤ w ≤ 10
The cost of producing t units is C = 3t2 + 9t, and the revenue generated from sales is R = 4t2 + t. Determine the number of units to be sold in order to generate a profit.
Select one:
A. t > 8
B. t > 10
C. t > 9
D. t > 0