Answer: 8
Step-by-step explanation:
Given
Money deposited 
Interest rate 
Time period 
For a year simple and compound interest is the same

Thus, interest earned is 8 units
Answer:
Number = -1
Step-by-step explanation:
8 - x = 3(x + 4)
8 - x = 3x + 12 ( /+x / -12 on both sides)
8 - 12 - x + x = 3x + x + 12 - 12
-4 = 4x (/ divide by 4)
-4/4 = 4x/4
-1 = x
Answer:
Step-by-step explanation:
<u>Volume of the prism is the product of its base area and height</u>
- V = AH
- V = 1260 cm³
- H = 18 cm
<u>Find base area:</u>
<u>Area of the trapezoid:</u>
<u>Substitute given values and solve for h:</u>
- 70 = 1/2(12 + 8)h
- 70 = 10h
- h = 70/10
- h = 7 cm