Answer:
60
Step-by-step explanation:
It is really easy just subtract the money with the percentage
The answer is $213 because you subtract the price sold by the price he bought them for and then you add them together (see work)
A percent. maybe? i really don't know for a fact..
Answer: 3000cm3
To find the area you need to find the area of the triangle and multiply that by the height of the prism.
The area of the triangle is
.5*12*10 = 60
And the height is .5m = 50cm
So the area will be
60*50 = 3000