An alloy of zinc and copper weight 13 1 / 2 kg if the ratio of zinc to copper 2 : 3 then the find the weight of copper in the in gram

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

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What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points