Jessica has $1350 in the bank. she wishes to increase her account to total of $3100 by depositing $45 per week from her paycheck. write an equation and then solve it to find how many weeks it will take her to reach her goal

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters