33 percent.
7/21 = 0.3333333
The answer is add 35 and 52 and you will get 87 which was supposed to be the amount sold
Answer:
AC ≈ 12.9 cm
Step-by-step explanation:
Using the ratio
sin40° = 
Multiply both sides by 20
20 × sin40° = b, hence
AC = b = 20 × sin40° ≈ 12.9
Step-by-step explanation:
-10-2x = 3x+15
5x = -25
x= -5