Answer:

A box = $11
Step-by-step explanation:
Given

Represent the first order with A and the second with B.
So, we have:

Solving (a): Find B.
To find B, we make use of:

Make B the subject

Substitute values for Total and A

Open bracket

Collect Like Terms


Solving (b): Cost of a box of light bulb
This means that:

Substitute 7x + 13 for Total

Collect Like Terms


Make x the subject


Hi I need help with my work can you help me please
Answer:
This would be test of independence because it contain only one sample test
Step-by-step explanation:
Test of independence determine two factors are independent or not
For example
if we do a test of independence
null hypothesis : H 0: Being a cell phone user while driving and receiving a speeding violation are independent events. If the null hypothesis were true, we would expect about 28 people to use cell phones while driving and to receive a speeding violation.
Therefore in the given question Each respondent answer that it might be in "Right Direction " or "Wrong Direction".
So it is a independent test.
6(4j - 6)
Distributing,
6(4j) - 6(6)
24j - 36
which is not equivalent to 24 - 36j