Will give brainliest to whoever answers !

which describes the cross section of the cube that passes through the vertices a, b, and c shown below?

a.) a rectangle that is not a square

b.) a square

c.) a triangle with three equal sides

d.) a triangle with only two equal sides

If you answer 2+2 you will get over 80 points

Aline passes through the points (5,4) and (2.1). part a.) what is the slope of the line that passes through these points? show work. part b.) what is the equation of the line that passes through these points. show work. part c.) where does the line intercept on the x& y axis? show work

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.