Solve the problem.Suppose that a sales person observes that if an item is priced at $7 per item then 5 items are sold. If 3 items are sold for $9 per item then find an equation to model the number y of items sold for x dollars per item.
A. y = x - 2
B. y = -x + 12
C. y = x + 12
D. y = -x - 2
Answer: B
Mathematics
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Solve the problem.Find the center of mass of the rectangular solid of density 
defined by 
, 
, 
.
A. 
= 
, 
= 1, 
= 5
B. 
= 
, 
= 
, 
= 
C. 
= 3, 
= 
, 
= 
D. 
= 6, 
= 
, 
= 
Mathematics
Provide an appropriate response. How many yards are in a driveway that is 287 feet long?
A. 95.7 yards B. 17.9 yards C. 23.9 yards D. 861 yards
Mathematics
Solve the problem.The number of gallons of water in a swimming pool t minutes after the pool has started to drain is 
How fast is the water running out at the end of 10 minutes?
A. 2500 gal/min B. 1000 gal/min C. 500 gal/min D. 5000 gal/min
Mathematics
Provide an appropriate response.Which coordinates match the point G?
A. (3, -2) B. (2, -3) C. (-2, 3) D. (-3, 2)
Mathematics