Matt could do one of the following arrangements;
2 rows of 8 CDs
4 rows of 4 CDs
Answer:
2x-6
Step-by-step explanation:
twice a number is

6 less than twice a number is
6 less than 2x and that is

The answer is 42 feet I use substitution and subtract by 8
Answer:
x = 32
m∠7 = 94
m∠8 = 86
m∠3 = 94
Step-by-step explanation:
(2x + 30) + (3x - 10) = 180
5x + 20 = 180
5x = 160
x = 32
m∠7 = 2(32) + 30 = 94
m∠8 = 3(32) - 10 = 86
<u>or</u>
m∠8 = 180 - 94 = 86
<u>m∠3 ≈ m∠7</u> (corresponding angles)