Um caixa eletronico tinha 250 moedas .180 moedas de 25 centavos, 20 moedas de 1 real, 50 moedas de 60 centavos. quanto tinha em dinheiro no caixa?
eu não quero apenas a resposta, quero ver como se arma a conta
quem ajudar. muito obrigado

Cody worked 42.5 hours per week in july. this is 12.25 hours more per week than he worked in june.how many hours did cody work per week in june?

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Divide. write in simplest form 41/6 divided by 10