Driving is expensive. write a program with a car's miles/gallon and gas dollars/gallon (both doubles) as input, and output the gas cost for 10 miles, 50 miles, and 400 miles. output each floating-point value with two digits after the decimal point, which can be achieved as follows: printf("%0.2of", your value);

3.2.5 suppose that we have an estimate ahead of time of how often search keys are to be accessed in a bst, and the freedom to insert items in any order that we desire. should the keys be inserted into the tree in increasing order, decreasing order of likely frequency of access, or some other order? explain your answer.

Melissa needs to add a topic to an email that she will send to her teacher. choose the name of the field where she should type her topic.

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.