Answer:
infinitely many solutions because both equations are the same
Step-by-step explanation:
Answer:
sorry I don't know the answer
Step-by-step explanation:
if I will know the answer I will see it
Answer:

Step-by-step explanation:
To find (c.g)(x) we basically use the function d(x) as your variable, x, and plug it into c(x). So we replace every x in c(x) with the function d(x), 
c(g(x))=4(x^{2} +5x)-2
c(g(x))4
+20x-2
If its 21 inches then rounding to the nearest who should be 21 inches