Answer:
ST=26
Step-by-step explanation:
RS+ST=RT
17+x+16=4x+3
x+33=4x+3
33-3=4x=x
3x=30
x=30/3
x=10
ST=x+16
ST=10+16
ST=26
<span>she sells means it is decrease in her collection, so out of 765 decrease is 153
then out of 100 decrease is 153/765 × 100 = 20 %
</span>
18/3= 27
therefore your answer is 27