Answer:
45 units
Step-by-step explanation:
$3.75
You only have to multiply 3 pounds by the $1.25 to get the cost.
Sum angle of triangle BHD = 180°
36 + 39 + BHD = 180
BHD = 180 - 36 - 39
= 105°
BHD + x° = 180° (straight angle)
105° + x° = 180°
x = 180 - 105
= 75°
rio cool