Mrs. gray had 2 kg of flour. she used 2/5 of it to make buns. how much flour did she have left in kg

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Aline that intersects one of two parallel lines intersects the other also always sometimes never

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition