The two questions aren’t there?
Answer:
Step-by-step explanation:
Given that four people are on the team. Members will be chosen randomly to serve as chairperson, treasurer, secretary, or timekeeper
Since one person cannot serve two posts we have total number of ways
= 4(3)(2)(1) = 24
If Noor is chair person and Qu treasurer then remaining 2 can take two posts in 2 different ways
So probability that Noor is selected to be chairperson and Qu is selected to be treasurer
=favourable outcomes/total outcomes
= 
If each inch is 40 miles then 7(40) = 280 and add the 1/4 which is 10 so the answer is 290
Answer:
1.125
Step-by-step explanation:
-2(5)^2+2(5)-3
-2(25)+10-3
-50+10-3
-40-3
=-43