What is 80% of $35
does anyone know what this is. I'm really bad at percentages

Find an equation (in term of x) of line through the points (-1,3) and (1,4)

Aright triangle has an area of 18 square inches. b: if the triangle is not an isosceles triangle, what are all the possible lengths of the legs, if the lengths are whole numbers. answer !

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?