It's 15 minutes, because it takes 1 hour for a television and a cable box, so you take 2 hours from the 4 hours, from the 2 televisions and the 2 cable boxes, so now you got 2 hours left and 8 cable boxes, so 2 hours is 120 minutes, and 8÷120=15
Answer:

Step-by-step explanation:
Given


Required
f(10)
An exponential function is represented as:

impleies that:
--- (1)
implies that
--- (2)
Divide (2) by (1)



Take 4th root

Substitute
in 


Solve for (a)


f(10) is calculated as:



24.3
bcoz to round to tenths place need to chk with hundreths place.
As 1 is in hudredths place so the digit in tenths place remains the same