The answer is D. (2.9,-22.8)
Answer:
a. 2,440 km
b. 
Step-by-step explanation:
a. Diameter of Mercury = 
Radius of Mercury = ½ of its diameter = 
Radius of Mercury = 
To convert the radius to ordinary number, multiply 2.44 by 1,000.
Radius of Mercury as an ordinary number = 
b. Mass of Jupiter = 
Mass of Saturn = 
Difference between mass of Jupiter and mass of Saturn =
(subtract 5.68 from 1.898 = 5.68. we would retain the largest exponent, which is raised to the lower of 27.)

Answer:
107 inches
Step-by-step explanation:
28+45+x=180
x=180-28+45
x=180-73
x=107
1160 dollars if you take 5/6 away from 1200 you get 40 subtract 40 from 1200 and you get your answer