please help

For the standard normal random variable z, find z for each situation. If required, round your answers to two decimal places. For those boxes in which you must enter subtractive or negative numbers use a minus sign. (Example: 300 ) a. The area to the left of z is 0.2119.z= b. The area between z and z is 0.9030.z= c. The area between z and z is 0.2052.z= d. The area to the left of z is 0.9948.z= e. The area to the right of z is 0.6915.z=