Me pueden ayudar porfis no entiendo

¿Cuantos triangulos tiene un eneagono? ​

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition

Connor took out a 4-year loan to buy a car at a 4% simple interest rate. if he has to pay $240 in interest, how much principal did he borrow?