Which of the following are valid c++ assignment statements? assume that i is an int variable, and x and percent are double variables.

a. i - 5 = x;

b. i = i++;

c. x = x * percent / 100;

d. percent = 0.05%;

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

Helen is having a meeting with her colleagues in her company. they are working on the goals and objectives for the coming year. they want to ensure that these goals and objectives of the processes involved are properly evaluated. which system can helen and her colleagues apply to evaluate this? helen and her colleagues require a blank to evaluate the goals and objectives.

Into what form does the barcode reader convert individual bar patterns?