The word
product
represent the multiplication operation and its symbol is
.
The word
less than or equal
represent the symbol is
.
The word
the product of
and y is less than or equal to 90
represent the inequality is
.
The inequality is
and solve for y.
Apply division property of inequality: if
then
.
Divide each side by
and reverse the inequality symbol.

Cancel common terms.
\
The solution of the inequality is
and its graph is

The closed circle means that
is a solution of the inequality.
The solution of the inequality
is
and its graph is
