y = 19
x = 4(19) + 21(19) = 76 + 399 = 475
3(475) × 7
1425 × 7
9975 <--- answer.
Hope this helped!
Nate
The least common denominator of 11/8 and 1/12 is 24. Since 24 is divisible by 12, as well as the number 8. Wherein, each answers will result to a whole number. Being, 24/8 is equal to 3 and 24/12 is equal to 2.
length of big square

length of small square

difference between length of two square
=5.2-3.5
=1.7
Is there like a picture or something?
The answer is C. 3×4 = 12. There are two therefore 50-24 = 26.