Will give brainlist soon as i can is the second number 3?

x = 2

Step-by-step explanation:

Using Pythagoras' identity on each of the 3 right triangles

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Outer right triangle

x² + z² = (9 + 4)² = 13² = 169, that is

x² + z² = 169 → (1)

Left right triangle

y² + 4² = x²

y² + 16 = x² ⇒ y² = x² - 16 → (2)

Right right triangle

z² = y² + 9²

z² = y² + 81 → (3)

Substitute (3) into (1)

x² + y² + 81 = 169 ← substitute (2) into here

x² + x² - 16  + 81 = 169

2x² + 65 = 169 ( subtract 65 from both sides )

2x² = 104 ( divide both sides by 2 )

x² = 52 ( take the square root of both sides )

x =

  =

  = × = 2

it's both, now can you answer my most recent question?

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!