READ THIS CAREFULLY.(5 pts) If 70% of the students in a school sign up for Excercise Day, a sporting goods store will give the school 10% off on all purchases. There are 378 students in the school. What is the least number of students that need to sign up in order for the school to make its goal?

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided.write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !