Answer:
83.5
Step-by-step explanation:
khan
Hello,
7C2=7*6/(2*1)=21
Other way: Pascal's triangle
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 <=================
22h=1,100 becase you're looking for how many hours 22 worked for to make 1,100 dollars
The answer is scalene because they all have different side