Find the area of the following composite figure​

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.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2