This statement can be expressed as
[tex]\frac{45}{r}[/tex]When we express a quotient, the statement will first give you the numerator, then the denominator.
This statement can be expressed are
[tex]3n+16[/tex]In this case, "three times" refers to a coefficient of 3, "number" is expressed as a variable n.
In this case, "decreased" means subtraction.
[tex]18-3d[/tex]"Squared" refers to a quadratic power.
This statement can be expressed as
[tex]\frac{20}{t^5}[/tex]