Greg is driving to his grandmother's house. During his trip he checks his speed three times The speeds were 45mph60mph, and 75mph. What was Greg's average speed for the trip?

Which of the following is correct interpretation of the expression -4+13

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Louis wants to carpet the rectangular floor of his basement. the basement has an area of 864 square feet. the width of the basement is 2/3 it's length. what is the length of louis's basement