Tom has a total of 15 stamps. some are worth 10 cents and some are worth 20. The value of the stamp is 2.40. how many of each stamp does he have? A. what are you trying to find?
B. what system of equations that models this scenario?

Which of the following statements is not true? a. parallel lines are lines in the same plane that never intersect. b. congruent figures have the same shape and same size angles and sides. c. similar figures must have the same shape and the same size. d. a rotation is when you turn a figure around a certain point.

Consider the function f(x)=-5x+3 what is f(-2)

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c