Four squares ABCD, EFGH, IJKL, and MNOP are constructed such that points E, F, G, H are middle points of the sides of square ABCD. Points I, J, K, L are midpoints of the square EFGH. M, N, O, and P are midpoints of the square IJKL. What is the area of the square ABCD, if OP=2 cm?

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?