Answer:
a+7
Step-by-step explanation:
2 + 5 = 7
7+a or a+7
Answer:
Option B ⇒ Area of base of each pyramid :
Option A ⇒ Volume of pyramid :
cm3
Step-by-step explanation:
One side of tile consists of 4 pyramids and since length of whole tile is x,
So, the base length of each pyramid = 
⇒ Area of base of each pyramid = side²
⇒ Area =

Volume of square based pyramid :

For 1. The correct Option is B
For 2. The correct option is A
Answer:
-15
Step-by-step explanation:
3 over 4 is already simplified. 15 over 12 is 5 over 4. If you are having trouble with the concept, www.ducksters.com/kidsmath/fractions_reducing_simplifying.php is a great guide