PLEASE HELP ME ASAP!
What is the solution to the system of equations?
1/4x - 1/2y = 8
1/2x + 3/4y = -5

1. (–8, –12)
2. (–8, 12)
3. (8, 12)
4. (8, –12)

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .

Can someone me with my math problem pls my teacher is on my back about this