According to a study*, the percentage of patients exhibiting an above-normal temperature response to a specified dose of a histamine can be modeled by a function R(a) that has derivative R'(x)= 100e+5 (1++5) 3 where a is the natural logarithm of the dose in milimoles (mM). Find a formula for R() and evaluate it at =-7.9. Remember: To determine the value of the constant of integration, use the fact that R() 0 as # 0. Round your answer to three decimal places. *K.A. Skau, "Teaching Pharmacodynamics: An Introductory Module on Learning Dose-Response Relationships American Journal of Pharmaceutical Education 68 (2004), article 73.