3. Solve the following word problems.a. It was -4°C during the night. The temperature rose by 9°C during the noon. What is thetemperature now?b. A submarine is at a depth of 453 ft below sea level. It further descends by 87 ft. Where isthe submarine now?c. A scuba diver has set a record of reaching a depth of 320 m in a sea. If another scuba diverhas reached 280 m below sea level, how much more he must dive to break the record?d.The credit card bill of a person is 5000. He repaid an amount of 34200 and againpurchased an item worth 1500. What is the outstanding amount that the person stillowe the credit card company?e. At sunrise, the temperature outside was -15°C. By midday, it increased by 45°C. Byevening, it fell to a third of the existing temperature and by night, a decrease of another25°C was observed. What was the temperature by night?Solve this question by explanation​