Sasha returned home from mowing lawns at 4: 15 p. m. it took 3/4h to mow the first lawn. the second lawn took 1h. she took a 30-min break between the two lawns. when did sasha begin mowing the first lawn?

2:00

Step-by-step explanation:

Count backwards from 4:15 p.m.  One hour prior to that was at 3:15 p.m.

Her 30-minute break began at 2:45 p.m.  Three fourths of an hour before that was at 2:00 p.m.  Sasha began work on the first lawn at 2:00 p.m.

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse