In the diagram, PQR is a straight line. Calculate the value of X and Y. HELPP

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.

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Ineed with number 6 , explain how to get 1978