!HELP! Which expression is equivalent to the given expression? (10c^6 d^-5) (2c^-5 d^4)

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Find two consexutive odd integers such that the sum of their square is 650

Carly stated, “all pairs of rectangles are dilations.” which pair of rectangles would prove that carly’s statement is incorrect?