If two coins are tossed at the same time, what are all the possible outcomes? (for example, ht means getting heads on the first coin and tails on the second.)
a.
{ht, th, tt}
b.
{hh, ht, tt}
c.
{hh, ht, th, tt}
d.
{hh, tt}

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

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"