Pleass help its not hard but i dont know what it ios PLESSS

Akitchen floor is made up of tiles that are in the shape of the triangle shown there are 40 tiles on the kitchen floor what is the total area of the floor

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

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.