If, on a typical Sunday, the store serves 312 customers, how much does the store take in on the worst 10% of such 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?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities