Выбрать правильный ответ. 42.определить число каналов на планируемый период, используя формулу средней хронологической, если известно, что на конец текущего периода число каналов составляет 380 ед., в 1 квартале планируется ввод 28 ед., а в 4 - выбытие 13 ед. а) 432, 250 б) 387, 500 в) 425, 750 г) 402, 875 д) 406, 125

в, мне так но не знаю, а может и не правильно

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Объяснение:

1) товары дорожают 2) цены ростут 3) цена падает 4) цены на товары увеличиваются 5) повышение курса нац. валюты выгодно, так как импортные товары становятся дешевле, но нац. продукция на мировом рынке дорожает и может стать неконкурентоспособной. и, наоборот, понижение курса нац. валюты не выгодно потребителям данной страны, так как ее покупательная способность падает, но это выгодно экспортерам национальной продукции, так как величина спроса на нее возрастает из-за понижения цены 6) 1.изменение паритета покупательской способности 2. изменение спроса на импортные товары 3. изменение доходов населения страны 4. изменение  внутренних цен 5. изменение денежной политики государства 7) продажа или покупка долларов в зависимости от необходимости повысить или понизить курс национальной валюты