He has $4.40, the quarters, nickels, and dimes added up to $1.80, subtract that from $6.20 and you get $4.40
The unknown number is X;
x/6+2=9;
X/6=7;
X=42;
The answer is 42
Sum of the number and its of inverse equals 0.
Answer:
16x+12
Step-by-step explanation:
4 sides
2*(5x-2 )
10x-4
2(3x+8)
6x+16
10x-4+6x+16=16x+12
