The answer would be b because if you substitute 5 in for x y=2x-6 would equal 4 and y=5x-21 would equal 4. I hope this helps!
20 + 23 = 43
43 - 34 = 9
9 + 2 = 11
11 x (4 x 4) = 11 x 16
11 x 16 = 176
The answer to your question is similar
Jazmeen can walk 1 1/4 in 1 hour because 1/4 × 5=1 1/4, I did 5 since there are 5 1/5 in 1
In order to find this you need to assume that they are declared as X and as X + 2. This makes the formula for calculating it x (x+2)=483, and this, based on the formulas for calculation, equals
x^2+2x-83=0
From this we can see that a negative X is -23, which when +2 is added results in -21.
