Help it’s for my final most of my grade

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.

If i have one apple and give you the apple, how many apples do i have?

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)