Iam a 3-digit number tha is even. mu hundreds and ones digits are the same and have a sum of 8. my tens digit is 2 less than my ones digit. what number am i?

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.

Can someone me with this problem . show your work .

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4