Two number with the sum of 123 and the difference of 35

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

What is the rate for one gallon of gasoline