If p is the midpoint of xy, xp=8x-2 and py=12x-30, find the value of x

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

What is the 8th term of the geometric sequence with this explicit formula? an= )(n-1)

An archaeologist in turkey discovers a spear head that contains 53% of its original amount of c-14. find the age of the spear head to the nearest year. (5250 isn’t right)