1/4 = 0.25
5/8 = 0.625
20% = 0.20
So now we have: 0.20 < 0.25 < 0.3 < 0.625 < 0.85
So the solution is 20%, 1/4, 0.3, 5/8, 0.85
Answer:
19) (
)^2 = 
20) -
= -81
21)
= 16
Step-by-step explanation:
The only wrong ones are
19) (
)^2 = 
20) -
= -81 ... negative is not inside a parenthesis that's why it is still negative
21) you can add another way is
= 16
Everything else looks good. Great job!
Answer:

Step-by-step explanation:
We want to simplify:

We first simplify the numerator to obtain:

Next the quotient rule:

We apply this quotient rule to get:

Simplify exponents:

Therefore the given expresion simplifies to:

Answer:
Step-by-step explanation:
let my present age=x
then 2(x-5)=x+2
2x-10=x+2
2x-x=2+10
x=12
my age=12 years
age of brother =12-3=9 years
age of sister= 9-2=7 years.