A plane takes off and flies east at a rate of 300 km/h. On the return trip flying west, the plane's speed is 250 km/h. The plane has enough fuel for a safe fly- ing time of 35 hours. How far east can the plane fly? Round your answer to the nearest whole kilometer.​

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0