Hello , I need help with these 2 problems. Could someone help me ?

Step-by-step explanation:

The first one will be:

7x^6 - 7x^5 +28x - 4x² - 60

And the second:

-9x⁴-3x²-4x²+5x

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.

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°