Answer:
answer of this question is
-7
it's -7
Step-by-step explanation:
calculate the values
B
Because the rest are wrong. It is just asking you to compare the numbers. choice B says that Group 1/A needs 6 more lessons than Group 12/B
12-{16-(5×2)}²
12-(16-10)²
12-(6)²
12-36
(-24)
