What was the original price if: after increasing by 60% it became $8a?

5a

Step-by-step explanation:

We can make a mathematical equation with the information obtained:

final value = initial value * (1 + percentage)

So, if we want to know the inicial value, what we have to do is clear it.

So:

So, in this case:

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

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°