help with 1st question

Determine the area under the standard normal curve that lies between (a) z = - 2.15 and z = 2.15, (b) z= - 0.42 and z = 0, and (c) z= - 1.18 and z= 0.17. . .. . . (a) The area that lies between z = - 2.15 and z = 2.15 is (Round to four decimal places as needed.) (b) The area that lies between z= - 0.42 and z =0 is (Round to four decimal places as needed.) (c) The area that lies between z = - 1.18 and z = 0.17 is (Round to four decimal places as needed.)