I'm pretty sure its B but I would double check before you put the answer in :)
Answer:
-1.8
Step-by-step explanation:
m= y2 - y2over x2 - x1
m= -1 - 8 over 1 - 6 = -1.8
m= -1.8
The mass of the solution is 190 g - 120 g = 70 g. Thus, it's density is 70 g / 50 mL = 1.4 g/mL.
Answer:
85 minutes.
Step-by-step explanation:
T = Tuesday
M = Monday
T = M - 15, 70 = M - 15, M = 85 minutes.
Since she worked out 15 minutes less than monday on tuesday, you add 15 to 70, since thats what she did on tuesday.