A gym's membership in 2012 was 9,300. The current membership is 2,800. Which expression can be used to find the

Find the difference between the two, divide by the years, and should get the percent of change

the answer is b

Step-by-step explanation:

mrk  me brainliest

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

step-by-step explanation:

do you have a copy of the table?