
<u>Step by step explanation:</u>
Step 1:

Step 2:

Step 3:

Step 4:

Step 6:

18y to the 20th power minus 90y to the fifth power
Answer:
4 1/2
Step-by-step explanation:
3 pounds cost $6.75
to help you, turn it into a fraction, 2 punds ove 2.50 equals 3 pounds over X
As the camera was at 25% of the original price, this means you've got to multiply this number to by 4 to get the original price.
167*4= 668
Therefore, the camera's regular price is $668
Hope this helps :)