525, 1050, 1575, 2100 +525 . . .
Just 1.
what goes into both 21 and 25
21 is not the square of an integer. The closest square number is 25.
21
1 and 4/21
21
5.25
1
The mixed number for 21 over 8 is 25/8
2 21/25
1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525.
The sum of number and four times a number is 25 write in algebraic expression