Which of the following is correct? a. check digits are always placed at the end of a data code. b. check digits are designed to detect transcription and transposition errors. c. check digits do not affect processing efficiency. d. check digits should be used for all data codes.

$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?

What's the rest of the problem? lol

Whats the answer choices, but a fiscal policy is the means by which the government adjusts its spending limit and tax rates to monitor and influence a nation's economy.