What keeps the Earth in its orbit?

A. the Sun's rotating speed
B. the Sun's gravitational pul
C. the Earth's rotatation
D. The Earth's location in relation to other planets
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Given f(x) = 3x= 1 and g(x) = 2x-3, for which value of x does g(x)= f(2)? its for algebra

Which city area has the most accessible oil reserves a) caspian sea b) siberia c)arctic coast d)lake baikal

What statement about charlemagne is not true? a. charlemagne's empire collapsed during his rule b. charlemagne sent missionaries throughout europe c. charlemagne encouraged the arts and education d. charlemagne ruled much of western europe a. charlemagne's empire collapsed during his rule