The sheet of stamps had 15 rows of stamps with 15 stamps in each row. How many stamps were on the sheet?

225

Step-by-step explanation:

multiply 15x15 to get your answer. We do this because each row has 15 stamps and 15 rows have 225 stamps.

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.