Can somebody plz help answer these questions CORRECTLY thanks!! (Only if u know how to do it)

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :D

Describe how making an ‘and’ compound sentence effects your solution set

Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?

Anut store normally sells cashews for? $4.00 per pound and peanuts for? $1.50 per pound. but at the end of the month the peanuts had not sold? well, so, in order to sell 40 pounds of? peanuts, the manager decided to mix the 40 pounds of peanuts with some cashews and sell the mixture for $2.00 per pound. how many pounds of cashews should be mixed with the peanuts to ensure no change in the? profit?