A torch and a battery cost $2.50 all together. the torch costs $1.50 more than the battery. what fraction of the total price is the torch? answer in simplest form.

Will mark the brainliest.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?