At the grocery store, halibut cost $20 per pound. which of the following situations can be modeled by the equation below? a. the cost of x pounds of salmon is $5 less than the cost of x pounds of halibut.
b. the cost of x pounds of halibut is $5 less than the cost of x pounds of salmon.
c. the cost of x pounds of salmon is the same as the cost of x-5 pounds of halibut.
d. the cost of x pounds of halibut is the same as the cost of x-5 pounds of salmon.

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done