Which choice is equivalent to the expression below? √-121 a. -11 b. √11i c. -√11 d. 11i e. -√11i

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet