(( i need asap this is really important ))

(a) name a pair of complementary angles. (b) name two supplementary angle pairs. (c) solve for each of the unknowns. show your work.

1. Complementary angles are any 2 angles whose sum is 90°

    Complementary angles are any 2 angles whose sum is 180°

a) BXC and CXD add up to 90°, so they are 2 complementary angles

b) AXC and CXD add up to 180°, so they are 2 supplementary angles

c) 2x+40°=90° (as BXC and CXD are complementary)

     2x=90°- 40°
      2x=50°
        x=50°/2=25°
     
      5y=90°
        
          y=18°

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.