In the figure, if l and k are parallel lines, what is the value of x+y
in degrees? (The figure may not be to scale.)

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Write the expression as a single natural logarithm. 2 in a - 4 in y

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?