D. As the phrase states, you are adding 12 to the product of 2 and t, which is your given equation.
Answer: 180
Step-by-step explanation:
There are 30 more students who have bikes then skateboards.
There are two categories for students who have bikes.
32 + 40 = 72 students will bikes
There are two categories for students who have skateboards.
32 + 10 = 42
72 - 42 = 30 more students have bikes
