what \text{RPE}RPEstart text, R, P, E, end text rank corresponds to the person's resting heart rate of 70\,\text{BPM}70BPM70, start text, B, P, M, end text? Round to the nearest integer.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same