How would I solve this?

3(6)-1

2(6)+1

Step-by-step explanation:

r(x) = 3x-1

s(x) = 2x+1

r(6) / s(6)

r(6) = 3(6)-1

s(6) = 2(6)+1

Putting r(6)/ s(6)

3(6)-1

2(6)+1

i think the length is 12 and the width is 17