Answer:

Step-by-step explanation:
<u>Surface Area</u>
The surface area of a cylinder of height h and radius r is given by:

It only covers the lateral side of the cylinder. If both the top and the bottom sides are to be included, then:

The label will cover only the lateral side of the soup can that has a height of h=8.5 cm and a diameter of 6.5 cm. We need to calculate the radius which is half of the diameter r=6.5 cm / 2 = 3.25 cm.
Now we calculate the side area of the can:


We need to add the 0.8 cm overlap to the total area already calculated. This overlap has 0.8 cm of width and 8.5 cm of height, so this overlap area is:

The total area of the label is:

The area of the label is 
Answer:
We just have to solve each power.

Remember, to solve a power, we just need to multiply its base as many times indicates its exponent.
It's important to know that the negative exponent indicates a position, that's why in the second exercise we needed to change the position of the power to continue.
Answer:
37 percent of the whole and 63 percent of unshaded
block
Step-by-step explanation:
Answer:
2y
Step-by-step explanation:
2x3y + 18xy - 10x2y - 90y
6xy + 18xy - 20xy - 90y
All terms can be factored by y and 2.