A line parallel to y = 0.6x + 3 will be of the form:

where k is a constant.
It passes through (-3,-5)
Thus,

Four subtracted from two times x
Tell him to stop buying shoes, you wouldnt have this questions.
that would be 1/2 :P
The answer is 10.5 pounds. No there is no other solutions.
24 divided by 1/4 = 6 lbs
24 divided by 1/8 = 3 lbs
24 divided by 1/16 = 1.5 lbs
6+3+1.5= 10.5 lbs of food