the total cost of an nintendo switch is $374.50 and it cost $350 before tax find the percent of sales tax

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Find the solution set for this equation: t^2+7t=0 separate the two values with a comma.