How many ounces of 20% hydrochloric acid solution and 70% hydrochloric acid solution must be nixed to obtain 60 ounces of 50% hydrochloric acid solution?

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Which expression gives the area of the triangle shown below

How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.