Step-by-step explanation:

Answer:
28
Step-by-step explanation:
cause
Answer: 
Step-by-step explanation:
Given : A biologist studied how cells grow by adding liquid protein to cell samples.
She divided
of an ounce of liquid protein evenly among 3 cell samples.
Here , total quantity of liquid protein =
of an ounce
Total cell samples = 3
Now , Quantity of liquid protein given by her to each cell = (total quantity of liquid protein ) ÷ (3)
=
.
Hence, Quantity of liquid protein given by her to each cell = 
Answer:
690 sq in
Step-by-step explanation:
SA = LA + 2B where LA is the lateral area and B is the area of the base
The triangular base has an area of
B = 1/2bh 1/2(5)(12) = 30
LA = ph where p is the perimeter of the base and h is the height of the prism
LA = (12 + 5 + 13)(21) = 30(21) = 630
SA = 630 + 2(30) = 630 + 60 = 690 sq in
Answer: p=9
explanation: 6 reds + 3 blues = 9.