Question

Mario collects seashells and sells them to tourists. The function s(t) approximates how many seashells Mario collects per hour. The function W(h) represents the number of hours per week Mario spends collecting seashells. What are the units of measurement for the composite function s(W(h))?

Answer 1

Answer with explanation:

It is given that Mario collects Seashells.

s(t)=Number of seashells collected by Mario per hour

W(h)=Number of hours per week Mario spends collecting seashells.

s[W(h)]=s[Number of hours per week Mario spends collecting seashells]

       =(Number of Seashells Collected per hour)[Number of hours per week Mario spends collecting seashells]

=Number of Seashell Collected by Mario in a week per hour

Answer 2

Answer:

Shells per week is the unit for this composite.

Step-by-step explanation:

For example, if my s(t) function is s(t) = 4t, this says that I can collect 4 shells in one hour.  If my W(h) function is W(h) = 3h, this says that I work 3 hours per week collecting shells.  

If you can collect 4 shells in 1 hour and you work 3 hours per week, you collect a total of 12 shells that week.  

The units are shells per week