16. A patient takes 5 mL of medication three times a day. The bottle contains 150 mL of
medication. For many days will the medication last?

10 days

Step-by-step explanation:

The patient takes 5mL three times (x3) a day.

5mL x 3 = 15 mL

To find how many days worth of medication the patient has, take the total amount she has (150 mL) and divide it by how much she takes a day.

150mL / 15 mL per day = 10 days.

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.