Answer: Answer is D, a 55° angle
Step-by-step explanation:
Answer:
9 cars/hour
Step-by-step explanation:
1.5 cars=1/6 hours
multiply both by 6
9 cars=1 hour
Answer:
Step-by-step explanation:
hello :
a(x) = 3x - 12 and b(x) = x-9, so
a[b(x)]=a(x-9) =3(x-9)-12
a[b(x)]=3x-9-12
a[b(x)]=3x+21