Tessa had $90 in her checking account. she paid her cable/internet bill for $60. she deposited $50 from her part-time job before writing a check for $65 to pay her credit card bill. what is tessa's account balance?

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 .