I believe the answer would be 50
explanation:
calculate
2 ÷ 5^-2
use negative power rule x^-a = 1/x^a
2 ÷ 1/5^2
simply 5^2 to 25
2 ÷ 1/25
use this rule a ÷ b/c = a • c/b
2 • 25
simplify
50
Dave jogged for 9 minuets and walked for 12 minuets
The x=y
Is this the the test of the question?
B. All sides are equal and each side is at a 60 degree angle.
For the first digit, you have two possible choices: 1 or 2. For *each* of those choices, you can choose 1 or 2 for the second digit in the number, and for each of *those*, you can choose 1 or 2 for the third digit of the number.
That’s 2 * 2 * 2 or 8 possible 3-digit numbers you can make with the digits 1 and 2.