I need help on how to do the percentage

What is this inequality notation? t is less then or equal to 2

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.