Please help me answer the following using R studio.

1. Consider the standard normal random variable, Z. a. Using R, find the area under the normal curve to the right of z=0.85. Provide probability statement, R code \& output. b. Using R, find the area under the normal curve between z=0.40 and z=1.30. Provide Probability statement, R code \& output. c. Using R, find a constant c for which P(cZc)=0.8664. Provide R code \& output