Answer:
b. -1
Step-by-step explanation:
9=4a+13
-13 -13
--------------
-4=4a
4a/-4
a=-1
70 laps in 40 hours
1/2+1/2=4
35+35=70
I think
Answer:
11,15,19,23,27,31,35,39,43,47,51,....
The answer would be -142, because you have to keep subtracting 3 and I got -142