Try this:
1. sum of numbers is x+y=67, the difference between them is x-y=11
2. it is possible to make up and resolve the system:
Answer:
C 30%
Step-by-step explanation:
87.50/125= 0.70
1-0.7-0.3
Answer:
66.42°
Step-by-step explanation:
Given
cos ? =
, then
? =
(
) ≈ 66.42° ( to the nearest hundredth )
Answer:
18
Step-by-step explanation:
÷ 
Keep Change Flip
×
= 