Mark has 10 pens. Kate has 5 times as many pens as Mark.

Which equation below answers how many pens Kate has? (y = number of Kate's pens)

10 = 5 × y
10 = 5 + y
y = 5 × 10
y = 10 ÷ 5

y = 5 × 10

The equation that answers how many pens Kate has is:

y = 5 × 10