A tree casts a shadow that is 20 feet long. If the distance from the top of the tree to the edge of the shadow is 45 feet, what is the angle of elevation from the end of the shadow to the top of the tree?

If the diameter of circle M is 10 millimeters, what is the length of the radius of circle M?

What's a rational number between 7.7 and 7.9?

How many solutions are there to the system of the equations? 4x-5y=5 -0.08x+0.10y=0.10 A) no solutions B) One solution C) two solution D) an infinite number of solutions B is not correct

Currently, you have $60 and your sister has $135. You decide to save $5 of your allowance each week, while your sister decides to spend her whole allowance plus $10 each week. How long will it be before you have as much money as your sister?

Determine whether each question is biased. Explain your answer. A beverage company conducts a survey in the lobby of a health club to determine people's favorite beverage.

How many 2/5 cup servings are in 9/5 cups of ice cream? (in simplest fraction form) A) 1/2 B) 2/9 C) 5/2 D) 9/2

Why is it important to be able represent functions as tables, graphs, algebraic ally and verbally?

What is the difference in the length between a 1-1/4-inch button and a 3/8-inch button?

Find (t2-4t-4) + (7t2+12t+3). The sum is.

Write 0.000000092 in scientific notation