Jason has 43 stamps. some
are worth 15 cents and some
are worth 20 cents. if their total
value is $7.50, how many of
each kind does he have?

How do i do this? i don’t understand

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.