The question is below

x = 54°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5, thus

sum = 180° × 3 = 540°

Each interior angle is therefore 540° ÷ 5 = 108°

Since the triangles are congruent then x = 108° ÷ 2 = 54°

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

11

step-by-step explanation:

32.50-7.50=25

225/25=11