Im pretty sure the answer is 5 maybe im not sure
Answer:
9a-a^2 is the required quotient.
Step-by-step explanation:

The reaction times form a straight line with gradient of 60/140 = 3/7 m/kph
Reaction time at 130 kph = 3/7 x 130 = 390/7 = 56 m to nearest whole number
Your answer should be 168.40
Answer:
It is on floor 2
Step-by-step explanation:
15-18=-3
-3+5=2
hope this helped :)