A sign says that the price marked on all music equipment is 30% off the original price. You buy an electric guitar for the sale price of $315. What is the original price? Ms. Artemus claims the original price is $450. Show your work and explain how she arrived at that answer. please ill give brainliest to who ever shows their work thank you.

What is the area of the triangle 10 13 12

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)