Hector is training for a race that is 10 kilometers long. on saturday he ran 2.5 km. he plans to add 0.5 km to his distance every saturday. hector tracks his progress by adding 0.5 every week.2.5 + 0.5 = 3.03.0 + 0.5 = 3.5⋮9.5 + 0.5 = 10which equations are equivalent to his weekly addition of 0.5 km and would correctly determine how many weeks it will take hector to reach 10 km if he starts at 2.5 km and adds 0.5 km every week? select all that apply. a. 0.5x + 2.5 = 10b. 0.5 – 2.5 = 10xc. 10 = 2.5 + 0.5xd. 2.5x + 0.5 = 10e. 2.5x – 0.5 = 10

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.