Answer:
54 km per hr
270 km
Step-by-step explanation:
1 metre per second is 3.6 km per hour.
15*3.6=54 km per hour
distance covered in 5 hrs=54*5=270 km
400
The 4 in 1745 is in the 10’s place
so that means the 4 is 40
If the value of the 4 is time times greater that means it would be 400
I’m guessing?
H = 3.
FIRST STEP:
<span>Add 1 to both sides to get rid of the -1 on the left side.
4h-1 = 3h+2
</span><span>4h-1 (+1) = 3h+2 (+1)
</span><span>4h = 3h+3
SECOND (FINAL) STEP:
Subtract 3h from both sides to get rid of the 3h on the right side.
</span>4h(-3h) = 3h+3 (-3h)
h = 3
Hope this helps, sorry if it's hard to understand :)

Usually, the "simplified" form has the polynomial multiplied out (as immediately above), rather than factored. If you want it factored, you can remove a factor of 7 from the terms of the numerator to get
7(x+1)/((x+2)(x-5)).