math
posted by Da S .
pei fen walked a distance of 526 m.then she walked for another 5minutes at a speed of 70m/min.she took a total of 12 min to walk the entire distance.
A.find the total distance that pei fen walked
b.what was pei fen's average speed for the whole journey?

total distance = 526 + 5 * 70
avg speed = total distance / 12 min