Choose the correct procedure from the drop-down menus to match each description.
shut down and unplug the computer. remove the cpu case lid. locate the various fans, and then use compressed air to blow dirt out through the internal slits from inside the case.
save files to an external storage device to aid in file recovery.
this process allows you to permanently delete files you no longer need.
this mini program may be an unwanted application.
remove programs you accidentally downloaded when you purchased an e-book. this application scans, locates, and makes needed repairs on the hard drive.

The third one is true. 0.3 > 0.20

$527.7.if the following was the question  $527.7 is the answer.students who are trying to raise funds have an agreement with a local pizza chain. the chain has agreed to sell them pizzas at a discount, which the students can then resell to families in the local community for a profit. it is expected that of the 500 families in the community, at most 70% will buy pizza. based on a survey of their personal preferences, the students believe that they should order no more than 120 cheese pizzas, no more than 150 pepperoni pizzas, and no more than 100 vegetarian pizzas. they also want to make sure that at least 20% of the total pizzas are cheese and at least 50% of the pizzas are pepperoni. they make a profit of $1.45, $1.75, and $1.98, respectively, for each cheese, pepperoni, and vegetarian pizza they resell. how many pizzas of each type should they buy?