First to Answer:
The slope is 0.1998. The number of calories is increased by 0.1998 for each 1 milligram increase in sodium.
I remember taking this test and getting this answer! Let me know if help with any of the other questions!
Answer:
It should take somewhere between 8 to 9 minutes to decay until there are 30 grams remaining.
The answer is C, you can tell because the b=-1, so that eliminates d, then you know the slope is positive because of the direction it goes, so that eliminates a. Then if you look at the slope, it goes up 3 over 1, so that makes the answer C.
Hope this helps
If you're simplifying the expression, your answer would be 12r - 54s + 18t.
You never showed the triangle