A random sample of 40 students at a local high school were asked if they carpool to school. Assume the true proportion of students that carpool to school is 20%. Let =the number of students in the sample that carpool to school .

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.

How do i put 3(x+7) in distributive property

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days