Answer:
Step-by-step explanation:
sum the outcome times the probabilities
5*.5+6*.12+7*.2+8*.08+9*.06+10*.04= 6.2
20 = 2*2*5
45= 3*3*5
5 is common so the GCF is 5
Answer:
5 squared is 25. 2*25+30=80
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
the answer is 5495
Step-by-step explanation:
1. subtract the numbers
2.multiply the numbers
3.add the numbers
4.use the rule of multiplication and division
5.add the numbers
6. your done!