The equation c = 2.95 g show how much it costs to buy gas at a gas station on a certain day. n the equation c represents the cost in dollars and g represents how many gallons of gas were purchased. Write down at least four (gallons of gas cost) pairs that fit this relationship.

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

Light waves can move through , but they travel fastest when they move through a(n) .

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added