Answer:
To find the sum of interior angles in a polygon, we can use the formula:
where n is the number of sides.
Since this is pentagon (5 sides), then 
The missing angle would then be

Since angles on a straight line add up to 180, then


The mass of the first shipment at time t is

The mass of the second shipment at time t is

At time t, the ratio of m₁ to m₂ is

Therefore as a percentage,

Answer: B. 81.2%
Answer:
suggestions use algebra calculator or mathaway they will help u and give you the answer
Answer:
3(7+5)
Step-by-step explanation:
21+15
Each term is divisible by 3
3*7 +3*5
3(7+5)
It equals 23 degrees Fahrenheit. So -5c=23f