Answer:
yes
Step-by-step explanation:
18 students are 1/10 of the number of seventh graders


First choice.
Answer: 0.625
Step-by-step explanation: 5 divided by 8= 0.625
Answer:

Step-by-step explanation:
Recall what the relationship between cosine and secant:

In other words, secant is the reciprocal of cosine.
So, if we know cosine, we only need to find its reciprocal to find secant.
We are given that cosine is:

Then secant must be:

So:

Square:

And we're done!