Question

Hello, I need a bit of help understanding this topic please.

Answer 1

Step-by-step explanation

Given that Chris pays a monthly fee of $21 and pays an additional $0.05 per minute of use. The least he has been charged in a month is $84.35.

Based on this, we can have the equation below;

`\begin{gathered} 0.05m+21\ge84.35 \\ \end{gathered}`

We can solve for m

`\begin{gathered} 0.05m\ge84.35-21 \\ 0.05m\ge63.35 \\ m\ge(63.35)/(0.05) \\ m\ge1267 \end{gathered}`

Answer:

`m\ge1267`