dave picked 1/5 of a pound strawberries. that afternoon daves sister ate 4/5 of the strawberries. how many pounds of strawberries did daves sister eat

Answer this question! 30 points and brainliest!

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

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.