Ella bought some key chains and spent a total of 24$. each key chain cost the same whole-dollar amount. she bought between 7 and 11 key chains. how many keys did ella buy

answer: i think it's a

step-by-step explanation:

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.25

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°