O número da casa de seu João é formado pelo numerador e denominador nessa ordem, da fração geratriz da dízima 0,2555...
Qual o número da casa dele?

Write a real-world solution that can be represented by the equation y = 7x be sure to explain what the variables represented in the solution

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?