Answer :
To convert the weight in pounds to ounces, we use the fact that there are [tex]$16$[/tex] ounces in [tex]$1$[/tex] pound. The calculation is as follows:
[tex]$$
\text{ounces} = \text{pounds} \times 16
$$[/tex]
Since the customer bought [tex]$7.5$[/tex] pounds of apples, we have
[tex]$$
\text{ounces} = 7.5 \times 16 = 120.
$$[/tex]
Thus, the customer bought [tex]$\boxed{120}$[/tex] ounces of apples.
[tex]$$
\text{ounces} = \text{pounds} \times 16
$$[/tex]
Since the customer bought [tex]$7.5$[/tex] pounds of apples, we have
[tex]$$
\text{ounces} = 7.5 \times 16 = 120.
$$[/tex]
Thus, the customer bought [tex]$\boxed{120}$[/tex] ounces of apples.