14r + 16 = 100
isolate the r: first subtract 16 from both sides
14r + 16 (-16) = 100 (-16)
how it looks now:
14r = 84
Than divide 14 from both sides to isolate the r
14r/14 = 84/14
how it looks now:
r = 6
Answer: r = 6
hope this helps
W=L+2
A=48=L*W
48=L*(L+2)
48=L^2+L*2
0=L^2+L*2-48
L1=6
L2=-8 (can't be used since it's negative)
Lenght=6
Width=8
0.4 yards for each pillow
The answer is C, 1 1/3, 1.3, 1 1/4, 1.125
Hope this helps :)