For C++ Driving is expensive. Given a car's miles/gallon and gas dollars/gallon (doubles), output the gas cost for 10 miles, 50 miles, and 400 miles. If the input is 20.0 3.1599, the output is: 1.57995 7.89975 63.198 (Note: Real per-mile cost would also include maintenance and depreciation).

Perform the following tasks: a. create a class named testclass that holds a single private integer field and a public constructor. the only statement in the constructor is one that displays the message “constructing”. write a main()function that instantiates one object of the testclass. save the file as testclass. cpp in the chapter 08 folder. run the program and observe the results. b. write another main()function that instantiates an array of 10 testclass objects. save the file as test class array. c . run this program and observe the results.

Which argument is not a valid filter? does not equal this quarter filter by cell color all of these are valid filter arguments.

What percentage of teens plays video games? a.97% b.100% c.74% d.50%