The two horizontal lines are parallel.
This makes the 80 degree angle and the angle ox x and 20 degrees are alternate interior angles and are the same.
This means x + 20 needs to equal 80.
X = 80-20 = 60 degrees.
Answer:

Step-by-step explanation:
5x-3>7
+3 to both sides
5x>10
divide 5 to both sides
x>2
75/4=25 pages per hour, so, now we have to divide 250 by 25.
250/25=10
So, it would take Joan 10 hours to read 250 pages. :)
Answer:
486 in
Step-by-step explanation:
hsndbdndidien$ytgnxeyuiiw82usbbdbsk
Answer:
6.42$
Step-by-step explanation:
6.00 divided by 100 equals 0.6 multiplied by 7 equals 0.42 so the sales tax is 0.42 cents and the total is 6.42$