If the teachers weights Homework at 20%, Quizzes at 20%, Tests at 40\% , and the Final Exam at 20\% , what is the minimum grade Heather can make on the final exam so that she scores a 90 in the class ? 86 90 98

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.