Rhianna and sauron a wrote 35 songs . they mad cds with 7 songs on each cd. how many cds did they have left after they sold 3 to their friends .?

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Officer brimberry wrote 24 tickets for traffic violations last week, but only 9 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i