In a science experiment, the temperature decreased by 0.1 degree celsius every 15 minutes. find the unit rate

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line