For which equation is x=-1/2 a solution

a.
7 – 4x = –9
b.
9x + 2 = 7
c.
6 + 8x = –10
d.
10x – 3 = –8

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)