Answer:
40%
Step-by-step explanation:
First you take $19 - $65 to get $26
Then: 26 ×100= 2600÷ 65= 40%
C bc
RSM = 56.4
RSM + MST = RST
RSM + 33.6= 90
Subtract 33.6 from each side
RSM + 33.6 - 33.6= 90-33.6
RSM= 90-33.6
3 1/4 = 13/4
1 3/4 = 7/4
13/4-7/4= 6/4
6/4= 1 1/2 hours more