plss help me .name the property /properties that is displayed in each of the following ( A) 1+3=3+1 . (B) 2×3(3×4)=(2×3)+(2×4) .(C) (2+3)×5=(5×3)+(5×2)

W-16=-12 solve each one step equation plz

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Acylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. what is the radius of the cone? a) 3 cm b) 5 cm c) 7 cm d) 9 cm