Answer:
27
Step-by-step explanation:
The 4 part of the ratio refers to 36 blue jackets.
Divide 36 by 4 to find the value of one part of the ratio
36 ÷ 4 = 9 ← value of 1 part of the ratio, then
3 parts = 3 × 9 = 27 ← number of red jackets
Well, you would use factorization for this, which would be MORE than 54 different codes! :D
The difference of a number and seven is x - 7. So twice that, would be:
2(x - 7)
