Liz earns a salary of $2,100 per month, plus a commission of 5% of her sales. She wants
to earn at least $2,400 this month. Write an
inequality to find amounts of sales that will
meet her goal. Identify what your variable
represents.

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.

your answer is a

step-by-step explanation:

4*4*4*4=256

13.46

step-by-step explanation:

16.80 x .20 = 13.46