Kira john and ryan sent a total of 112 text messages during the weekend. kira sent 8 fewer messages than ryan. john sent 4 times as many messages as ryan. how many messages did they each send?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?