Lauren pays $19.99 for a membership fee to an online music store. lauren buys songs from a new album at the price of $0.99 each. she paid a total of $21.97 for the membership fee and the songs. which represents the number of songs lauren bought?
(a) 1 songs
(b) 2 songs
(c) 3 songs
(d) 4 songs

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.

table 3 represents a direct variation function. : )

x-3y=4

step-by-step e

they disappear if your absent from to long. i found out that the hard way.

step-by-step explanation:

brainliest lol i just need one more brainliest.