Question 742349
20F+4P=92 MULTIPLY BY -1.5 & ADD.
30F+5P=130
-30F-6P=-138
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-P=-8
P=$8 COST OF ONE POST.
20F+4*8=92
20F+32=92
20P=92-32
20P=60
P=$3 COST PER FENCE PICKET.
PROOF:
30*3+5*8=130
90+40=130
130=130