I think the answer is d hope this helps
Answer:
Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute. Let x be the number of minutes Andrew uses per month and f(x) be the charges based on Andrew's cell phone plan. If then If then first 300 minutes are free and each minute of next (x-300) minutes costs $0.39, therefore Hence, { 19 + 0.39(x - 300), x > 300
Hoped I helped
Answer:
he need to sell 200 tickets
Step-by-step explanation:
driks=500
we need 1000 more
divide 5 (value of tickets) into 1000 (we need) =200
Answer:
45 minutes
Step-by-step explanation:
97-52 = 45