Parallel lines will never touch each other while perpendicular forms like an X shape. The slope for the parallel is the same while the perpendicular is a negative reciprocal. (Ex for negative reciprocal. 2/4=4/2)
Hello,
The two lights flash at the same time every 18 min
at 8:00 h=480 min =480+0*36
at 8:36 h=516 min =480+1*36
...
54 is not divisible by 36
60+12=72 = 2*36 yes
60+24=84 not
120+24=4*36 yes
180+18=198 not
So 2 times are correct 9:12 and 10:24
Answer G
7tens8ones
6tens18ones
5tens28ones
4tens38ones
3tens48ones
2tens58ones
1tens68ones
0tens78<span>ones</span>
Since you have two numbers that have a (x) at the ends of them, you add those first then add seven which will end up being 9x+7
