Acustomer's total cell phone bill moth is $50.50. the compan charges a monthly fee of $18 plus five cents for each call. use n to represent the number of calls

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

X+ y = 5 ; x - y =3 solve using linear combination