Please help, I don't know the answer!

C. 6*9^3 + 1*9^2 + 1*9^1 + 5*9^0

Step-by-step explanation:

In base 9, each digit to the left represents a power of 9.

The rightmost digit represents 9^0, the next digit to the left represents 9^1, the next digit to the left represents 9^2, and the 4th digit represents 9^3.

C. 6*9^3 + 1*9^2 + 1*9^1 + 5*9^0

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2