Question

Anyone know how to do this

Answer 1

The answer to your question is:  Yes.  

To solve each and every one, write the two given numbers in place of their letters in the given equation, and then solve the equation for the letter that's left.

For example, let's do #1 together.  I'll do all the work, and you just watch.

#1 says that s=d/t.  It also tells us that 'd' is 4 and 't' is 2.  So here's a great idea:  Why don't we write '4' where it says 'd', and write '2' where it says 't', and then see what we've got ?

s = 4/2

Wow !  We know that 4/2 is 2 .  So s=2 and that's exactly the answer to the question !

Now it's YOUR turn.  Do the next 25 problems the same way.