(1/7)*42=6
(2/3)*42=28
6+28=34
42-34=8
8/42=4/21
your answer is 4/21
Answer:
301.44 cubic units
Step-by-step explanation:

The teacher spend some amount on buying costumes and microphones for 6 cast members.
<u>GiveN</u><u>:</u>
- Cost of each costume = $38
- Cost of each microphone = $c
- Total money spent = $354
Let's frame the equation. Total money is the total amount spent for 6 cast members.
Money spent on costumes = $38 × 6
Money spent on microphone = $c × 6
<u>Equation:</u>

Taking 6 as common,

Dividing 6 from both sides,


Solving further,


So, the cost of each microphone = <u>$21</u>
The teacher spent this much on each microphone.
#CarryOnLearning
<u>━━━━━━━━━━━━━━━━━━━━</u>
D = T2 - T1
d = 9 - 14
d = - 5
T40 = 14 + 39(-5)
= 14 - 195
= - 181