Aswimming pool contains 1000 gallons of water. 20 gallons is added every hour. the expression 1000 + 20h represents the number of gallons of water in the pool after a certain number of hours? a.3030gallons b.1010 gallons c.1600 gallons d.1020 gallons

I'm pretty sure that it might be B.1010

Step-by-step explanation:

It might be wrong though

answer is 144

step-by-step explanation:

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'.