The dinner bill for the Rao family was $58. Mr. Rao left a tip of 15% of the bill. What was the total cost of the family’s dinner?

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

We just started the introduction into circles and i have no idea how to do this.