What is the value of n in the equation: 8n + 9 = -n +5

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.