Can someone check two answers of mine? (MEDAL)
http://gyazo.com/f582048d4893a844d24c1be28c58a4b0

Question

Can someone check two answers of mine? (MEDAL)
http://gyazo.com/f582048d4893a844d24c1be28c58a4b0

anonymous · Answer

r=t/d

anonymous · Answer

One the first question, you need to isolate the "t" to both sides. Solve that and you getd/t=r or for your answer choices, r=t/d

anonymous · Answer

Alright thanks! Is my second answer correct though?

anonymous · Answer

We're find the width, formula would be, A=L*W. Plug in the numbers to the letters taht they belong to.

anonymous · Answer

A = L * 90?

anonymous · Answer

Atually, wait. Let me review what I did lol.

anonymous · Answer

Okay xd

anonymous · Answer

Here we go, the formula for this problem is: P=2(L+W). 

We don't quite know what's 'W' correct? So to get that we need to plug in the numbers into the letters that they belong to. 

P=2(L+W)

90=2(15)

90=30

W=30

anonymous · Answer

Ah okay, thanks for your help!

anonymous · Answer

No problem!