Hello, who would you do me the favor of helping me with this question? He says:
Show, using the property of the number of diagonals of a polygon, that the triangles have no diagonals.
I hope they help me ​

Lilianna uses 3/4 calories per minute just by sitting. she uses 1 more calorie per minute by walking. lilianna uses a total of 12 1/4 calories walking to the park. lilianna uses the equation, d(.75+1)=12.25 to represent the situation. what does the variable d represent in the equation?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Given abcd ac=38 and ae=3x+4 find the value of x