Adding 3 to some number , then multiplying the result by 7 give 28 what was the original number? pls answer me now

The required number is :

Let the number be represented as " x "

from the given statement we can infer that :

So, let's find the value of " x " from the given equation ~

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

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°