Can you give me an algebraic equation that equals to 17?

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?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2