Respuesta :
Answer:
D . $ 1.10
Step-by-step explanation:
Let x be the cost of each pen
x-0.40 be the cost of each pencil
12x + 20(x-0.40) = $16 is the equation
Solve the equation:
12x + 20x - 8 = 16
32x = 24
x = 0.75 is the cost of each pen
x- 0.40 = 0.35 is the cost of each pencil
( I doubled checked with a calculator ) :)