What are 2 and 8/10 + (-3.5) in decimal form?

Not sure I understand the first part of your question but 2 is just 2 and 8/10+(-3.5)=-2.7 in decimal form :^)

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3