Solve the problem.A cyclist bikes at a constant speed for 16 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 21 miles. Find his speed.
A. 5 mph
B. 7 mph
C. 6 mph
D. 4 mph
Answer: A
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Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If 
in.3 when 
and 
what is the volume when 
and 
(Round to the nearest tenth.)
A. 207.5 in3 B. 177.5 in3 C. 217.5 in3 D. 227.5 in3
Provide an appropriate response.In a test of a diet for pigs, the average live weight w (in kilograms) of a pig was a linear function of the number d of days after the start of the diet, where 0 ? d ? 50. The weight of a pig at the beginning of a diet was 25 kg and thereafter the pig gained 5 kg every nine days. (a) Express w as a function of d. (b) Find the weight of a pig 36 days after the beginning of the diet.
What will be an ideal response?
Find the reciprocal.
A. 
B. 
C. 
D. 
Graph the inequality.x > -5 
A. 
B. 
C. 
D. 