The Answer is:
(5a2-3a+8)+(-4a2-1)+(15a+11)
20 and that should be correct, if you need an explanation just ask
Simplemente necesitas restar tres de siete y dejar tu denominador como 4. Tu respuesta es 4/4, que es lo mismo que 1.
B would be the correct answer. If you take 4:13 in order to form a ratio equal to that you have to multiply both sides of the ratio by the same number. 4*4=16 and 13*4=52
Answer:
The friction that the car usually uses to stop(a rough and hard ground) was null and void, so the car spun uncontrollably.
