QUICK HELP PLS

Evaluate the questions below and select the statistical ones.
A
What is the mass of earth?
B
What is the mass of Halley's Comet?
C
How massive are asteroids in the asteroid belt?

Line l passes through points (0,4) and (3,6) what is the slope of a line that is parallel to line l -2/3 -3/2 2/3 3/2

Nine more than four times a number is the same as one less than twice the number. find the number?

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?