Answer:
Yes
Step-by-step explanation:
A square is a quadlirateral.
A rectangle is a quadrilateral.
.5x=10+.25x
.25x=10
x=40
When you buy 40 songs
The cost equals 20$
Answer: 28 - 8
Step-by-step explanation:
Adding a negative number is the same as subtracting its absolute value (:
Okay so triangle DEA = 71 degrees
And angle DEB = 90 degrees (right angle)
90 - 71 = 19 degrees
Angle EBA = 90 degrees (right angle)
That leaves the 90 degrees + 19 degrees = 109 degrees
There’s 180 degrees in a triangle so
180 - 109 = 71 degrees
