For the second question, your first option is correct, you would rewrite 8 in power-base form 8=2^3 as the first step to solving the equation, power base form is exponential form.
If you plug in the second equation (x=5-3/2y) into the first, you get:
5(5-3/2y) - 4y = 7
Simplify:
25 - 15/2y - 4y = 7
-15/2 y - 8/2 y = 7-25
23/2 y = 18
y = 18 * 2/23 = 36/23
answer B!
No they aren't because they both can't be multiple by the same number
The phone number is in Maintenance rehearsal.
<h3>
What is Maintenance rehearsal?</h3>
Maintenance rehearsal is a rehearsal technique that involves straight repetition of data values or information(s) to memorize and remember them.
This rehearsal technique is often referred to as rote rehearsal. The repetition of the digits of a phone number by Alex again and again while he is getting out his phone to enter it into his contacts is an example of maintenance rehearsal.
Learn more about Maintenance rehearsal here:
brainly.com/question/5989079