[For 22] 2(x+3)+2x=26
2x+6+2x=26
4x+6=26
4x=20
x=5
Length=8; Width=5
[For 23]
a. 95+4x=75+9x
b. 95=75+5x
20=5x
x=4 (4 would be how many students it would take for each trip to cost the same)
c. 95+4(22)= 183
75+9(22)=273
$183< $273, so the nature center would cost less.