While on vacation in Australia, Brent and Giselle decide to explore the Great Barrier Reef. Brent decides to go snorkeling near the surface at a depth of 5 feet below sea level. Giselle is an experienced scuba diver and decides to explore a little deeper at 80 feet below sea level. Represent these situations as signed numbers.

Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.

What is the number 321,000,000 in scientific notation? also what is the number? ?

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.