In order to solve this i'd have to know what x equals?? does it tell you?
Answer:
a. n= 1x +7
b. n= 12 + 4x
Step-by-step explanation:
It must end in a 0 for the number to be divisible by 10. The other 5 can go in any order, so 5 factorial (5!) = 5*4*3*2*1
120 numbers
Answer:Where is the picture?
Step-by-step explanation: