In an examination 70% of examiners passed in Science and 75% in Mathematics. 10% of them failed both the subjects. What is the percentage of those who passed in both the subjects?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?

Shannon mary and john earn a weekly allowance ahannon earns the amount that is 2/3 of what john earns mary earns an amount that is 1 2/3 of what johns earns 20 dollars a week who eaens the greatest allowance and who earns the least