. Dado el conjunto = {2; 3; {2}; ∅; {2; 3}; {∅}}, indique cuántas de las proposiciones siguientes son correctas:
. {2; 3} ∈
. ∅ ∈
. {∅} ⊂ ()
. {2; 3} ⊂
. {∅} ⊂
. {2; 3;{3}} ∈ ()

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

What is the measure of angle x? answer

Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step