Alh1W5arejaneRiah Alh1W5arejaneRiah Today at 6:08 AM Mathematics Answered <17 and <18 are vertical angles. m <17=(5x+3)(degrees) and m<18=(3x+23)(degrees) find the measure of <18 a. 13 degrees b. 44.3 degrees c. 53 degrees d. 33 degrees.