If 100 cats kill 100 mice in 100 days, then 4 cats would kill 4 mice in how many days ?
a. 1 day
b. 4 days
c. 40 days
d. 100 days

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

At 6 1/2 cents per pound of string beans how much does 7 pounds cost