Why do we need math?

Math will always be around and is always needed even though its use has not been recognized. The buildings, platforms, cars, medicine ( drugs), everything has been made using math. There are many reasons for why we need math, and it would painstaking to state every single one of them.
Counting and receiving change, for instance, involves math. How much to give. How much the buyer gets back  and everyone wants to get their right amount of money back, so what would you need to count that? Math.
Artictutures and builders use math and science to create the very buildings and houses you see and live in every, single day. Without math, things would be out of proportion and building will collapse because someone different perform the exact measurements. So, now one part is too big, and the other too small. Thus, creating an imbalance. As state before, the building will collapse.
Determing how much medicine to use also involves math because you don't want to take too much of a drug that could possibly kill or have negative effects on your body. So, getting the right amount instead of an estimate, will ensure a healthy immune system and preserve homeostasis.