72.5 weeks. if you subtract 1,000 from 2,450, you will have 1,450. now, divide this by 20. it is 72.5 weeks.
K, so
first one, ok, all of them are prime, 5 and 7 and 13 are all prime
2nd one, 24 is not prime
3rd one, 3 and 13 are prime
4th one, 4 is not prime
answe is 1st and 3rd one
36 because if you add the two know angles and subtract the sum of those by 180 you get 36
$520. I think it is since 52 is 10% of 520. Hope this helps
No solutions
There are no values of x that make the equation true.
