What’s x of this image ?

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.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]