55
construction in exercises 53-55, use the photograph of a roof truss.
(53.) in the roof truss, bg bisects zabc and z def,
m zabc = 112, and zabc = zdef. find the
measure of the following angles.
a. mzdef
b. m zabg
c. m2 cbg
d. mz deg
54. in the roof truss, gb bisects dgf.
find m2dge and mzfge.
55. name an example of each of the
following types of angles: acute,
obtuse, right, and straight.
1.4 measure and cla

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.