Answer:
2(x^2)-1
Step-by-step explanation:
The square of a number is just the number squared. We don't know what the number is so I will just say it is x. So we have 2 times x^2. Then we have to minus 1 from that. So 2(x^2)-1.
Hope this helps! :D
B
spent 22 ---> x - 22.
at least 28 left ---> (x - 22) >= 28
SOLVE:
x - 22 >= 28
x >= 50
Answer: 1/8
1/2 x 1/4 = 1 x 1/2 x 4
