In 2005 there were 1352 students in 2006 there were 1014 students work out the decrease in the number of students

For each proportion find the unknown number x 1/5/8=×/15

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

What is the circumference of a circle with an area of 50.24 cm²?