O conjunto dos números reais, simbolizados por R, é a união entre o conjunto dos números racionais e o conjunto dos números irracionais. O conjunto dos números reais engloba praticamente todos os conjuntos numéricos que já estudamos. São exemplos de números reais a)os números naturais
b) os números inteiros
c) os demais finitos
d)os decimais infinitos periódicos
e) os decimais infinitos não periódicos

Movie $5.50 soda $1.75 popcorn $2.25 candy bar $1.10 jeffrey left home with $20 in his wallet. he had a quick lunch that cost $8.47 and went to the movie theater. which of these activities can jeffrey do? a) go to movie and take two friends b) go to movie and have a soda, a popcorn and a candy bar c) go to movie, take a friend, and have a popcorn to share d) go to a movie, have 2 popcorns, 2 sodas, and 2 candy bars eliminate

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning