Pierre's parents ordered some pizzas for a party. 4.5 pizzas were eaten at the party. there were at least 5 1/2 whole pizzas left over. how many pizzas did pierre's parents order?

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

What is the period of the sinusoidal function ?

Maria heard on the radio that the high temperature that day would be to determine the temperature in degrees celsius, she used the formula , where c is the temperature in degrees celsius and f is the temperature in degrees fahrenheit.