Marissa has taken four 100-point tests in math this semester. her mean score is 89%. how many points has she scored altogether on the four tests?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?