How many possible 4-digit combinations are there with the numbers 2, 3, 4, 5, 6, 7, 8, and 9 if none of the numbers appear more than once (i. e. 2343, 2333, 2323,

Step-by-step explanation:

we need a 4-digit number from the numbers (without repetition ).

possible number at thousand place

Possible numbers at hundred place

Possible numbers at place

possible number at unit place

So total possible numbers

Other method :

We are taking numbers out of and here order matters so we will use permutation.

Total possible numbers

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

c is the answer

step-by-step explanation: