550+40W=S is the equation and after 11 weeks, she would have $990
Answer:
-20x - 24
you just multiply the factor on the outside by each on the inside.
32 / 2 = 16 and 32 / 4 = 8 so the possible different ways he can arrange the stamps could be 4 different ways.
2 rows of 16
16-2
4 rows of 8
8-4
Special right triangles. A special right triangle is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist. For example, a right triangle may have angles that form a simple ratio, such as 45-45-90. This is called an "angle based" right triangle.