Find f(x) and g(x) so that the function can be described as y = f(g(x)). y = two divided by x squared + 9

The system of equations graphed below has how many solutions? y = 2x + 2

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.

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: