Answer:
Step-by-step explanation:
if someone drove 640 miles in 4 hours,
, it means that they drove 640/4=160 miles per hour
in 12 hours
160*12=1920
or
640............................4 h
640*3.........................4*3 hours
which give syou the same answer
1920.............................12 hours
-9/2 or -4.5
-1/2 - 4
= -9/2 or -4.5
57
