Use will, are/is going to or the present continuous. 1 We are having dinner with the Smiths tomorrow night. Would you like to come?

Question

Другие предметы: Use will, are/is going to or the present continuous. 1 We are having dinner with the Smiths tomorrow night. Would you like to come?

kseriii · Answer

Допустим блокнот это x, а ручка то yx+y=402x+y=70Следовательно x=70-40=30ответ:блокнот стоит 30 рублей, ручка стоит 10 рублей...