Find the greatest common factor of 6c^3 and 10c^4

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9