Please help me ill give u brainliest

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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.