= square root 11 (5 - 12 - 2)
= square root 11(-9)
= -9 square root 11
answer is C.
you got it right
<span>C = AB + D
AB = C - D
B = (C-D)/A
B = C/A - D/A</span>
Answer:
The total cost is 
Step-by-step explanation:
Let
x-----> the number of tulips
y-----> the number of daffodils
C-----> the total cost
we know that


substitute the value of x

Find the total cost

substitute

You have to add the same kind of terms, in this case the ones that have a variable (5.4q and -4.5q) and the ones that don't (2.4 and 3.6), like this:
(5.4q - 4.5q) + (2.4 + 3.6) = 0.9q + 6
The answer is c. 0.9 +6
I think the answer is 2 2/5