A20% increase followed by 25% decrease is it same as original less than original or greater than original

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Find the value of x in the diagram below. select the best answer from the choices provided

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.