David wants to buy a new bicycle that cost $295 before a 40% discount. He finds the cost after the discount, in dollars, by evaluating 295 - 295(0.40). His brother Michael finds the
same cost by evaluating 295(1 - 0.40). What property can be used to justify that these two
expressions represent the same cost after the discount?

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

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°

the answer is ! ?