1.find the absolute value of the following integers: a. 9 b. −14 c. 0 d. −135 e. +1,408 2.find the absolute value of the following numbers: a. 18 b. −5.72 c. 0.4 d. −712 e. +102.5 3.a man dropped his keys into the sea, and watched them fall to a depth of −8 meters before landing on a rock. how far are the keys from the surface of the sea? 4.sue borrowed money from her friends to buy a cinema ticket and snacks. she now has a balance of −$21. how much money must she earn in order to break even, or achieve a balance of $0? 5.ben removes a stick of frozen butter from the freezer, and finds that it has a temperature of −15°c. when the temperature of the butter reaches 0°c, ben will use it in a recipe. how many degrees does the temperature need to rise?