If an amount of $100 in a savings account increases by 10%, then increases by 10% again, is that the same as increasing by 20%? and explain.

10% of 100$ is 10$, so the new amount in the account is 100+10=110$. 10% of 110$ is 11$, so the new amount in the account is 110+11=121$.

20% of 100$ is 20$, wo the new amount in the account is 100+20=120$.

It's not the same, because when you do it twice by 10%, the value changes in between.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.