One half of the birds at a pet store were yellow. tara buys one. then 1/3 of the birds left are yellow. how many yellow birds were left at the store before tara bought them?

Find the simple interest earned to the nearest cent for each principal,interest rate,and time 735 7% and two and a half years

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).