A + -5 = -12
A - 5 = -12
A = -7.
This is the solution.
Answer:
5 significant figures
Step-by-step explanation:
looking at the last two digit of the numbers, it multiplication gives, 4*5=20
we already have four significant figures ,
so, 2 would be the fifth since 0 is not going to be counted
Y = mx + c
y = 0.5x
y = 0.5*4 = 2
(4,2)