Aschool library has 260 dvds in its collection. given that 45% of the dvds are about science and 40% are about history, how many of the dvds are about other subjects?

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

If the tip varies directly with the number of guest which equation represents between the tip,t, and the number of guest,g?