Answer: v^2 -4v-21
Step-by-step explanation:
Answer:

Step-by-step explanation:
hope this helps.
65* It is drawn with a round ruller...
P=Ae^kt
225 = 210 * e^(k*(1990-1980)
225/210=e^10k ln(225/210)=10k
k=ln(225/210)/10=0.0069
P = 210*e^(0.0069t)
for 2000 ===> t = 2000-1980=20
P = 210*e^(0.0069*20)
P=241.0749=241
you divide 8/4 and get 2. 2 plus 7 is 9