The answer is A i believe so cause its adding 4 seats every time and you multiply 4*21 <span />
Use photo math. or mathpapa to help you solve the equation
The expression would be written as:

n-3
N is any number. This expression means two-fifths of a number, subtract three. Now substitute 25 for n.

(25)-3
=10-3
=7
Answer:
17= 2/3
13,,,a=> (5x+5) (x+3)
Step-by-step explanation:
.........................
Forgive me if wrong
K:A
5:3 (before)
15:9
since the total number of stamps didn't change, the total ratio should be the same.
7:5(after)
14:10
so this means 1 unit is 10stamps.
14-10=4
4 X 10= 40
Kaye have 40 more stamps than Alberto.