Answer:
the formula for a square pyramid is 
so I THINK its B please do not base ur answer from my opinion
Step-by-step explanation:
4<√19<5
8<√77<9
so the quality numbers are 5,6,7,and 8
5+6+7+8=26
so the answer is 26
There are 100 tens in 1,000
Answer:
16xpi
Step-by-step explanation:
To find the area of a circle the formula is pi r squared.
r represents radius, aka 4x.
4 times 4 yields 16.
Leaving you with 16xpi