Please help asap this is due in 1 hour

a) 5000 combinations

b) 200 combinations

c) 1000 combinations

Step-by-step explanation:

a) for the first cell there is 10 possibilities

for the second cell there is 10 possibilities

for the third cell there is 10 possibilities

for the last cell there is 5 possibilities

so the total number of possibilities= 10×10×10×5= 5000 combinations.

b) for the first cell there is 1 possibility

for the second cell there is 10 possibilities

for the third cell there is 10 possibilities

for the last cell there is 2 possibilities

so the total number of possibilities= 1×10×10×2= 200 combinations.

c) for the first cell there is 2 possibilities

for the second cell there is 10 possibilities

for the third cell there is 10 possibilities

for the last cell there is 5 possibilities

so the total number of possibilities= 2×10×10×5= 1000 combinations.

4 + 5 7/9= 9 7/9

step-by-step explanation: