Answer: 
Step-by-step explanation:
Given : Hot air balloons generally descend at a rate of 200 to 400 feet per minute.
Also, Four balloons descend 200 feet per minute for 9 minutes.
Then, the total change in altitude for all 4 balloons will be :-

Hence, the total change in altitude for all 4 balloons will be : Balloon descends 18 feet in 4 minutes.
Answer:
3/5 is the number that can be distributed across two terms inside parentheses.
you might not need it but:
x = 5
Step-by-step explanation:
<u>3/5(x - 10)</u> = 18 - 4x - 1
using distributive property, open the parentheses:
<u>3/5x - 6 </u>= 18 - 4x - 1
Simplify:
3/5x + 4x = 17 + 6
4⅗x = 23
x = 5
T(n) = 6n - 1
T(1) = 6(1) - 1
T(n) = 6 - 1
T(n) = 5