Which equation has only one solution? A.
6
r
=
5
r
+
r
B.
4
m
+
5
=
25
C.
8
v
+
11
=
8
v
+
11
D.
2
−
3
p
=
−
3
p
+
5

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.