A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of the sand dune after x years. Which equation represents the situation?

The sum of j and 362 is 235

Funny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. When she began her study, the frog population was estimated at 1,200.

There are twice as many Robins has blue jays and their 21 altogether how many blue jays are there

thomas has a square swimming pool at home. Each side is 18 m long. What is the area of the swimming pool

Louis wants to carpet the rectangle floor of his basement. The basement has an area of 864 square fee. The width of the basement is 2/3 its length. What is the length of Louis's basement?

One month Diane rented 12 movies and 2 video games for a total of $65 . The next month she rented 3 movies and 5 video games for a total of $41 . Find the rental cost for each movie and each video game.

Which of the following would NOT be the result of a substitution in the following system? 2x + y = 7 y - x = 1 Answers A. 2 (y + 1) + y = 7 B. 2x + x + 1 = 7 C. 7 - 2x - x = 1

Which can be used to describe an equivalent expression for (s Superscript 6 Baseline) Superscript negative 3? Adding the exponents will create an equivalent expression. Dividing the exponents will create an equivalent expression.

If tan θ = 9, find the exact value of cot (θ). A. 8 B. 10 C. 1/9 D. 9

If the number is 5,678.321 what is the underlined digit of the 5