Verified Answer :

28 tens is equivalent to a total of \(280\). . . 

You can find this answer by just simply multiplying;
\(28\) x \(10\) = \(280\)

Hope it Helped :)  


we know that

One tens is equal to the number-----------> \(10\)

so

\(28\) tens is equal to

\(28*10=280\)

therefore

the answer is

\(280\)