-What is the area of an annulus with circles of radii 17 cm and 8.5 cm? Answer in square centimetres correct to one decimal place.

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

If chord ab is congruent to chord cd, then what must be true about ef and eg?

20.ju inces. which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces? (-3,-18) (-0.5, -3) (0,0) (0.5, 3)