Answer:

Step-by-step explanation:
Given the rectangular poster shown in the picture, you know that its dimensions (its width and its lenght) are:

In order to calculate the dimensions of the rectangular at
times its current size, you need to multiply the original lenght by
and multiply the original width by
.
Knowing this, you get:

If it take some x minutes to upload some y digital photographs, it means it has an average of: x/y minutes to upload a single digital photograph. Then, to upload z photographs, you just multiply x/y by z.
Spoilers for answer:
If it take 7.2 minutes to upload 8 digital photographs, it means it has an average of: 7.2/8 = 0.9 minutes to upload a single digital photograph. This means that, by this rate, it will take 20 * 0.9 = 18 minutes to upload 20 photographs to the website.
Answer:
Step-by-step explanation:
let x x +2 x+4 three consecutive odd <span>integers
2x =9+ x+4 </span>Twice the smallest<span> is nine more than the largest
2x - x= 13
x= 13 the first
the second integer 15 the third 17 </span>
Answer: x^2 - y ^2 − 1.5x + 1.5y
Step-by-step explanation: