22 tables because 22x7 is 154
or you could divide 154 by 7
Answer:
it's simple substitution
Step-by-step explanation:
1. (7)(2)/2= 14/2=7
2. (5)-(8)/4=
3. (6)-(1)+6=11
4. (19)+(1)^3=21
Since a^2 - b^2 = 1, the value of y = 1 because x=1 and 1^2 - 1^2 = 0
