A museum has a 1/1000 scale model of the Grand Canyon, complete with a miniature river in the bottom. Explain how you could use the model to approximate the volume of water in the Grand Canyon.

Which of the following statements describes the absolute value of a number "a"? A) The opposite value of a number "a" can be represented by the absolute value of a number "a.

There were 850 students at Franklin Middle School last year. The student population is expected to increase by 20% next year. What will the new popluation be?

Find a + b, 2a + 3b, |a|, and |a - b|. a = 5i + j, b = i - 3j

What is the solution 21=42-3r

A toy store sold 405 dolls it sold equal number of dolls each month for 8 months and also sold a few extra dolls during the last month how many extra dolls were sold during the last month

Which decimal is equal to 2/5 0.6 0.15 0.2 0.3 0.4

At the end of one day, the value of a share of a certain stock was $12. Over the next three days, the change in the value of the share was $-1, then, $-1, and then $3. Write an expression that descrines the situation.

max travels 50 miles in one hour. At this rate, how long will it take him to reach a city that is 650 miles away?

Which property is demonstrated by the following statement? 15+w + (-12) = 15-12+w

9 m 7 m (23 m) What is the area