The access code for a car's security system consists of four digits. The second digit cannot be zero and the last digit must be odd. How many different codes are available?

An angle that measures between 90 and 180° is called a(,

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30