For every pound a company spends on advertising it spends £.0.49 on it website express the amount spent on advertising to it website as a ratio in it simplest form

1/0.49

Step-by-step explanation:

Every pound = 1 pound

And for every one of this company spends 0.49pound

To express this in a ratio is 1:0.49

Which is also 1/0.49 in fraction.

A ratio tells us how many times a number contains another number. It compares two numbers in relation to each other.

Therefore 1/0.49 expresses the amount spent on advertising as a ratio

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6