Write the set {x|x is a nonnegative real number} as an interval using interval notation.   I have {x|x is greater than or equal to 0} I just don't know if it's right and unsure if I have to put it on a number line. ​

Can you draw an isosceles triangle with only one 80 degree angle?

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same