A sporting complex charges $7 to use its facility. the expression 0.15 b + 7 models the total cost to hit b baseballs in the batting cages what is the cost per ball

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 .