Which expressions are equivalent to the one below? check all that apply. 8^x
a) (32/4)^x b) x^4 c) 8*8^x-1 d) 32^x/4 e) 32^x/4^x f)8*8^x+1

What is the value of r of the geometric series?

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?