Answer:
1<x≤8
Step-by-step explanation:
x is greater than one, but is less than or equal to 8
I dont understand the question
Answer:
Carly owns 14 books.
Step-by-step explanation:
42/3= 14
hope this helps!!! (:
Answer:
About 4 hours.
Step-by-step explanation:
Let's set up a proportion and cross multiply.

Cross multiply.
120 = 28x
Divide by 28 on both sides.
= 4.28571428571
Round this to the nearest whole number, which is just 4. The answer is about 4 hours.
D(t) = -4t^3 + 40t^2 + 500t = 4088
4t^3 - 40t^2 - 500t + 4088 = 0
t = 7
Therefore, the plane has flown 4088 km 7 hours after it took off.