Answer:
a: 210 codes are possible.
b: 1/210 is the probability of entering the correct code.
Answer:
73
Step-by-step explanation:
90-17=x
x=73
Answer:
Step-by-step explanation:
2y/y + 2 + 4/y+2
2y/2y + 4/2y
1y + 2y
3y
it can be used to calculate the length of a circular bracelet