One day, the temperature started at 14 degrees at 6: 00 a. m., then climbed 5 degrees by noon, and then dropped 7 degrees by midnight. what was the temperature at midnight? 2 degrees 12 degrees 16 degrees 26 degrees

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?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.