**Answer:**

The answer is C=6p3 + 29p2 + 22p – 21

**Step-by-step explanation:**

To calculate the product, we need to multiply each member of each multiplier:

(2p + 7)(3p2 + 4p – 3) = 2p · 3p² + 2p · 4p + 2p · -3 + 7 ·3p² + 7 · 4p + 7 · -3

= 6p³ + 8p² - 6p + 21p² + 28p - 21

= 6p³ + 8p² + 21p² + 28p - 6p -21

= 6p³ + 29p² + 22p - 21

Therefore, the product of (2p + 7)(3p2 + 4p – 3) is 6p³ + 29p² + 22p -21

**Answer:**

3.5

**Step-by-step explanation:**

Well its easiest to just plug in the answers and see like 2 times 3.5 is 7.

Another way is saying 7 divided by 2 is 3.5

then u check to make sure its the same for all the numbers.

Which it is because 21 divided by 6 is also 3.5 :)

**Answer:**

Perimeter = 15 cm

**Step-by-step explanation:**

The equation P=5s represents the perimeter P of a regular pentagon with side length s.

We need to find the perimeter of a regular pentagon with side length of 3 cm.

To find it, put s = 3 cm in the given equation.

P = 5(3) cm

= 15 cm

**Hence, the perimeter of the regular pentagon of side length 3 cm is 15 cm.**

**-122**

**sorry if i am wrong but have a good day<3**