Look at the right-angled triangle ABC. A
Not drawn
accurately
х
Z
75°
у
B
с
W
The square fits exactly inside the triangle.
Work out the sizes of angles x, y and z.​

Bring the fraction a/a-4 to a denominator of 16-a^2

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.