Question

Which two expressions are equivalent?

Answer 1

Answer:

The FitnessGram™ Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal. Ding  A single lap should be completed each time you hear this sound. Ding  Remember to run in a straight line, and run as long as possible. The second time you fail to complete a lap before the sound, your test is over. The test will begin on the word start. On your mark, get ready, ding

Step-by-step explanation:

Answer 2

Answer:

b

Step-by-step explanation:

a isn't it because it multiplies 7 by 3 added with x. the second equation next to it is simply not equal to it.

b is slightly referring to a property called "the associative property of addition." the associative property of addition is simply adjusting the place of the parenthesis. per example:

(1+2)+3=1+(2+3)

either way, you still get the same answer.

c isn't it because 7*x*3 is all multiplied, as to the second equation, part of it is being added, then multiplied by 7.

d cannot be it because we do not know if x is < or > than 3.