Answer:
14.1
Step-by-step explanation:
A.) 1/2
B.) 3
For the first one, just plug the value of x (4) everywhere you see x in the formula.
For the second one, place 1 wherever you see f(x)
Hope this helps
A healthy 140 pound boy needs between 2,000 to 2,400 calories a day.
Hope that helps :)