The average depth of water at a certain dock is 6 feet. This varies by 2 feet in both directions with the tide. Suppose high tide is at 4 AM and the tide goes from low to high every 7 hours. Write a function that can be use to express the height of the tide starting at 4 AM. Use "x" as your independent variable.​

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.

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

What is 1.5% of 120 or what number is 1.5% of 120