**Answer:**

20.04

**Step-by-step explanation:**

He marked it down to 67%. Not up

**Answer:**

0.0079 = 0.79% probability that she randomly plants the trees so that all 5 sycamores are next to each other and all 5 palm trees are next to each other.

**Step-by-step explanation:**

A **probability **is the number of desired outcomes divided by the number of total outcomes.

The trees are arranged, so, to find the number of outcomes, the arrangements formula is used.

**Arrangements formula:**

The number of possible arrangements of n elements is given by:

**Desired outcomes:**

5 sycamores(5! possible ways) and then the 5 palm trees(5! possible ways)

5 palm trees(5! possible ways) then the 5 sycamores(5! possible ways).

**Total outcomes:**

Arrangements of 10 plants, so:

**What is the probability that she randomly plants the trees so that all 5 sycamores are next to each other and all 5 palm trees are next to each other?**

0.0079 = 0.79% probability that she randomly plants the trees so that all 5 sycamores are next to each other and all 5 palm trees are next to each other.

He is correct. The pattern is -11,-11+15,+11 and +11

The area of a square is length^2

(5ab)² = (5ab)*(5ab) = 25a²b²

**Answer:**

108m²

**Step-by-step explanation:**

So we know to find the volume for a rectangular prism we need to multiply base * height * leght.

For this problem to make it a little easier we can seperate it into 2 rectangular prisms. and then add the volume of both after.

1st prism volume:

2 * 2 * 7 = 28cm²

2st prism volume:

5 * 2 * 8 = 80m²

Final prism volume:

28cm² + 80m² = 108m²