Answer:

Step-by-step explanation:

20.50 * 0.8 = $16.40
16.40 * 0.4 = $6.56
Final selling price = $6.56
Answer:
x = 1-y/6 and y= - 35/ - 37
Step-by-step explanation:
Answer:
-25 ,B
Step-by-step explanation:
Answer:
He is B) 45 years old
Step-by-step explanation:
If he was 30 when she was born, he was 40 when she was 10, and he was 45 when she was 15.
15 x 3 = 45
Edit: It can actually be any of them....