Select ALL the correct answers. Select the scenarios that correctly represent the given graph. The radioactivity of a substance decreases by 10% every year. The amount of money in an account decreases for a few months and then increases. The sale of a product increases at first and then decreases. The height of a stone shot by a catapult reaches a maximum height and then falls on the ground. The speed of a car increases constantly by 10 miles per hour.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

20%

step-by-step explanation: