Answer:
50.5
Step-by-step explanation:
Sooo first we calculate edf. 11/2= 5.5, 5.5x5=27.5
And then we do the other part.9/5=4, and 4x11.5=46, and we need to cut that in half cuz it’s a triangle 46/2=23. We add up the rectangle and the triangle: 27.5+23=50.5
The cost of one sandwich is $3.90
The cost of one deknk is $1.50
hopefully this is correct
Length of one edge is 10cm
And the surface area is 600cm2
The set X = { x , {x} } would, I think, fit the Bill
So its 2 elements