Answer:
c
Step-by-step explanation:
subtract 15 and then multiply by 4. because you need to multiply by the reciprocal
(2,5)
It's the coordinates of the point where the lines cross
-15z+27
-3x5z -3x-9
.00045-2.5×10^-5
= 4.5 x10^-3 - 2.5 x10^-5
= 4.25 x10^-4
