A Telco company charges $\$5$ for the first $10$ minutes of international call and $90$ cents per minute subsequently.
On a particular month, Kenny travelled overseas for work. 
The bill for his international call was not more than $\$20.25$ for the month.
Form an inequality to find the maximum number of minutes Kenny spent on international call for the month.

A Telco company charges $\$5$ for the first $10$ minutes of international call and $90$ cents per minute subsequently.

On a particular month, Kenny travelled overseas for work.  

The bill for his international call was not more than $\$20.25$ for the month.

Form an inequality to find the maximum number of minutes Kenny spent on international call for the month.

Forming an Inequality from a Real-World Cost Scenario Involving Time and Money

Forming an Inequality from a Real-World Cost Scenario Involving Time and Money

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