Answer:
B
Explanation:
well if you calculate it,
12 - 9 = 3x
3 = 3x
x = 1
you can find the answer for x but in the other choices you have no inputs for the values therefore all of them are wrong, and D is just wrong because 6 + 30 doesnt equal 62
6 + 30 = 62 is literal equation.
C.4
d
pv=nrt
2.5×1.01×10^5×8×10^-3=3×8.31×T
T=
