Answer:
5
Step-by-step explanation:
Remember, the rank of a matrix is the number of pivots or number of rows different of zero in the echelon form of the matrix.
Then, if A is a matrix 
the maximum number of pivots that can have is one by row, that is, 5.
Then the maximum rank that A can have is 5.
3(4x + 6) + 7x
12x + 18 + 7x
19x + 18 <==
Rob has R quarters, and David has R + 24 or 24 more than rob, so together they have 2R+24
Answer: 12 inches
Step-by-step explanation:
Answer: 27 candles.
Step-by-step explanation:
A rectangular prism has a volume calculated by length x width x height.
In this case, the candles have a volume of 220 cm³.
If the company used 5940 cm³ of wax, to find how many candles they made, you just divide them:
You get 27 candles.
