Answer:
6
Step-by-step explanation:

Answer:
23 matches
Step-by-step explanation:
If the 5th grade team wins 2/5 matches, thats equal to 8/20, and 4th graders win 15/20, so together they win 23 matches out of 40
C is the right answer because the period should be pi/(1/3), so the answer is 3pi
Answer:
Step-by-step explanation:
39.95(5)+.62(460)=484.95
Answer:
13/20
Step-by-step explanation:
To figure this out, all you need to do is to add 1/4 and 2/5 together. But to do this you first need to find a common denominator. I used 20 as the common denominator, so now the two fractions are 1/4=5/20 and 2/5=8/20. Now that we have a common denominator, all you have to do it 5/20+8/20=13/20.