(5x2)x(3x15) is the same as writing the word problem of:
Sue bought 5 2litre bottles of lemonade and 15 3litre bottles of cherryade for a party she was holding. How many litres of each drink did she buy altogether? Times your final two answers together.
Hopes is helps! ;)
Answer:
See below.
Step-by-step explanation:
Composition of the functions is sometimes commutative.
Under certain circumstances, they can be the same. However, most of the time, they are not commutative.
For instance, if we have f(x)=x^2 and g(x)=x^3, then:

Most of the time, however, this won't work.
Edit: Added an example.
4(x-10) .....................
Answer:
46.08 inches
Step-by-step explanation:
2.5 pounds weight stretches a spring to 18 inches
A pound weight will stretch 18inches divided by 2.5 pounds
= 7.2 inches
6.4 pounds will stretch = 7.2 X 6.4
= 46.08 inches