how do i find the amount of solutions to an quadratic equation by looking at it for example "How many real solutions are there to the equation x2−7x+12=0?"

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Just tell me how to set up the equation.

The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99