Math 120 review sheet inequalities

From the figure and statement provided, select the proper to prove statement. through a point outside a line one line can be drawn parallel to the line. mn= ab ab + bc= ac mis parallel to ! ab=bc als parallel to b

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

How can you construct perpendicular lines and prove theorems about perpendicular lines