An art teacher needs to buy 5 boxes of markers to completes a project with the class of 20 students. How many boxes of markers will he need to buy for class of 28 students.

7 boxes.

Step-by-step explanation:

1 box per 5 students. And you would have 3 extra students. In this case you can't have less then what you need so she would have to buy 7 boxes, but have a few extra.

45

step-by-step explanation:

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.