1/7+11/7+7/11+7/1
sum of the first 17 terms of the sequence -104,-91,-78,-65
9x − 2(9 − 3x) − 12 = 10(2x − 3)
y<5, x-y<1
T=2\pi \sqrt{\frac{l}{g}}
1/7+1/14+1/28
Suppose the current exchange rate is $1.21 U.S. dollars per 1 euro and you have $604 U.S. dollars. After a no-fee exchange, how ma...
Every time I take the shortcut through the forest, I get lost." Can this statement be turned into a conditional statement?
Group ...
using the digits 1,2,3,4 and 5 only once, how many numbers greater than 41000 can be formed?
(3y/12-8x) x (9-6x/5y)