Tia had 300 comic books in her collection. Tia brother Ryan has 10 times less than tia. How many comic books does Ryan have?

30

Step-by-step explanation:

ten times less means divide so 300 divided by 10 is 30.  To check the answer you just have to multiply 30 by 10 which gets you 300

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°

answer: 5100 just subtract

step-by-step explanation: