**Answer:**

My guess would probably be $370.

**Explanation:**

The reason I say that is because since 200 euros was 270 American dollars, why not try the same thing for 300 euros? If you do the process of elimination, it wouldn't be the $540. The same for the second one so, you have 2 remaining options left. The third or the fourth.

Hope that helps!!

**Answer:**

**b = 4**

**Step-by-step explanation:**

4b + 5 = 1 **+ 5b**

**4b-5b + 5 = 1**

4b-5b = 1 - 5

-b = 1 - 5

-b = -4

-b = -4

b - 4

**Answer:**

Isosceles triangle is a triangle that has two sides of equal length.

Perimeter of isosceles triangle is given by:

or P = a+a+b where a is the equal of length sides and b is the unequal side length side.

Given: Two congruent sides each of has length = 2x-1.5 unit and third side has length x+3.

⇒ and b = x+3

By definition of Perimeter;

P = 2a+b

P=2(2x-1.5)+x+3

P= 4x - 3 + 3 [Using distributive property]

Simplify:

P = 4x

Therefore, two equivalent expression for the perimeter of isosceles triangle are;

P=2(2x-1.5)+x+3 or P = 2x -1.5 + 2x-1.5 + x+3

P = 4x

I hope this helps you

1/2y=7/8+2/3

1/2y=7.3/8.3+2.8/3.8

1/2y =21/24+16/24

1/2y=37/24

y=37/12

Answer: the total weight of 1 red block is 4 ounces and 1 green block is 2.5 ounces.

Step-by-step explanation:

Let x represent the total weight of 1 red block.

Let y represent the total weight of 1 green block.

The total weight of 2 red blocks and 6 green blocks is 23 ounces. This means that

2x + 6y = 23 - - - - - - - - - 1

The total weight of 3 red blocks and 4 green blocks is 22 ounces. This means that

3x + 4y = 22- - - - - - - - - - 2

Multiplying equation 1 by 3 and equation 2 by 2, it becomes

6x + 18y = 69

6x + 8y = 44

Subtracting, it becomes

10y = 25

y = 25/10 = 2.5

Substituting y = 2.5 into equation 1, it becomes

2x + 6 × 2.5 = 23

2x + 15 = 23

2x = 23 - 15 = 8

x = 8/2 = 4