The Coins class was created to hold all your loose change, kind of like a piggy bank! For this exercise, you are going to simulate starting a bank with a specific number of coins, then adding to your piggy bank to bring your total to $2.12. What you need to do: Create a Coins object that initially has 4 quarters, 3 dimes, 2 nickels, and 1 penny. After you create the initial object, print out the total, then add coins to your bank until you have a total of 15 coins totaling 2.12. You will need to figure out which combination gets you to the correct total with the correct number of coins! When you are finished, call the method to print the bank count then the bank total to verify that you got the correct values.

You have written, as part of a school assignment, a research paper on the solar system. you want to share this paper on your school website. on which type of server will you upload it?

What is one reason why indoor air pollution has become an increasing problem.

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?