Since an instant replay system for tennis was introduced at a major tournament, men challenged 1401 referee calls, with the result that 418 of the calls were overturned. women challenged 777 referee calls, and 228 of the calls were overturned. use a 0.05significance level to test the claim that men and women have equal success in challenging calls.

2 5/8 is the final answer! : )

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6

the answer is 8/21

hope this