Answer:
b= -1
Step-by-step explanation:
48 =. 56 +8b
-56 -56
---------------------------------
-8 = 8b
Divide 8 on both sides
-1=b
Distance÷time
440÷8= 55
Therefore he needs to drive at the speed of 55 miles/hour
\left[x \right] = \left[ 3\right][x]=[3] totally answer
I think the answer would be C :$:$:$:$:$:$:$:$:&:$
