Slope form of through -4,-1, slope-4

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?