Jake went to the park. he spent 30 minutes walking on a trail. the rest of the time he spent relaxing in the park field. he spent a total of 86 minutes at the park. how many minutes did he spend relaxing in the park field? use the variable r to represent the number of minutes jake spend relaxing.

which equation represents this situation and its solution?

a. 86r = 30; r = 56

b. r + 86 = 30; r = 116

c. 30r = 86; r = 56

d. r + 30 =86; r = 56

plz in the next 15 mins? ? pl thx about 8 points