Six times four less than three times x as an equation

If a fair 6 sided cube is rolled 60 times, theoretically how many times should you expect to roll a 4 or a 5?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?