if a cost for a dinner is 459 and the family wants to leave a 20% tip, with the sales tax of 7% also, what is the total cost?

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

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

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?