The price of a particular snack at a ballpark seems to affect the number sold in a way such that the product of the number
and the price in dollars is roughly constant. The table shows some of the data.

Is the data linear? Why or why not?
a. Yes, it appears on a straight line.
c. There is not enough information to determine
whether this data is linear.
d. Yes, the average rate of change is constant.
b. No, it does not appear on a straight line.

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

What happens to an isotope during radioactive decay?

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm