BRAINLIEST! will give can someone please explain, I don't understand how to do this.

101.58 in

Step-by-step explanation:

The ramp r is the hypotenuse of a right triangle with the ground and 28 in height being the legs.

The angle of elevation 16° is the angle inside the triangle opposite the 28 in height.

Using the sine ratio in the right triangle, then

sin16° = = ( multiply both sides by r )

r × sin16° = 28 ( divide both sides by sin16° )

r = ≈ 101.58 in

so, converting firstly the mixed fractions to improper fractions and then "adding".

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870