Select the correct answer. and form a right angle at point b. if a = (-3, -1) and b = (4, 4), what is the equation of ? a. x + 3y = 16 b. 2x + y = 12 c. -7x − 5y = -48 d. 7x − 5y = 48

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29