Yes, all numbers are real numbers because a number is a number, and nothing can change that. I hope this helps you!
Answer:
false
Step-by-step explanation:
cuz how could negative be positive
The surface area of a rectangular prism is always:
A=2(xy+xz+yz), where x, y, and z are the three dimensions of the prism.
A=2(50*90+50*3.5+90*3.5)
A=2(4500+175+315)
A=2(4990)
A=9980 mm^2
The third one: No, yes, no
