General equation of Ellipse centered at (h,k) is given as

where a is the radius along x-axis
and b is radius along y-axis.
Given : The equation of elliptical path of Earth as

Comparing the equation with the general equation, we get
(h,k) as (-2.5,0)
a = 
b = 
We have the Sun located at the coordinate (0,0).
Hence, the distance between Sun and Earth in July = 149.5 + 2.5 =152
∴ Earth's distance from the Sun in July is 152 million kilometers.
(10 pounds) - (7 pounds 3 ounces) =
2.8125 pounds
70 percent off 19.50 would mean getting a discount of 13.65, so the final price of the sandals by the end of the summer should be 5.85
Y^-5
x^-5
because you have to put together all the x and then put all the y's together