Serena purchased CDs from Hopeful Books & CDs. The number of items she bought at each price is shown in the graph.

What percent of the CDs did she purchase for less than $5?

Enter your answer in the box.

25

Step-by-step explanation:

look how many CDs were less than 5$ (there are 4 that are less than 5$)

then count the total amount of CDs (there are 16 total CDs) then put it as a

fraction 4 out of 16 CDs were less than 5$ so 4/16, covert to a percent, 25%

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.

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.