Answer:
if each commercial lasts 1/2 minute how many commercials are there in a 4-hour program?
480
Step-by-step explanation:
4 hours= 240 mins
240/0.5=480
Answer:
15,17,19
Step-by-step explanation:
Make an equation : 
Solve the equation:



Since x=15 then the second number is 17 and then 19
Hope this helps!
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Answer:
2 7/16
Step-by-step explanation:
multiply both top and bottom of 2 3/4 to make it 12/16 then subtract from there.
Answer:
D-70
Step-by-step explanation:
It is a combination C(8,4)