Jenya paid $40 per month for a cell phone plus $1.25 for each international text message she sent. she sent 50 international text messages in a month. what was jenya's total cell phone bill?

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.