Answer:
-150
Step-by-step explanation:
Multiply & Divide left to right

Once again Multiply & Divide

Add & Subtract
Final Answer: 
Answer: 13 years
Step-by-step explanation: this is the equation
5000(1+0.035)^n=7800
Answer:
Sum
Step-by-step explanation:
Answer:
π radians
Step-by-step explanation:
The arc cos(- 1) in degrees is 180° and 180° = π radians
Idk what the dollar signs or what the letters represent, would help but doesnt make sense