Two figures in the plane are similar if one can be mapped onto the other using a finite sequence of dilations or basic rigid motions.

True or false

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?

Im literally having a mental breakdown

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !