Answer: C. 45
Step-by-step explanation:
1. You know that there are 6 tulips for every 9 daisies. Then, if there are 30 tulips, you can write the following expresion, where [tex]x[/tex] is the number of daisies when there are 30 tulips:
[tex]\frac{6}{9}=\frac{30}{x}[/tex]
2. Then, you must solve for x as following:
[tex]6x=30*9\\6x=270\\x=\frac{270}{6}\\x=45[/tex]
3. Therefore, the answer is 45 daisies.
