How do you find the value of something in math if you can't visually see it? Do you place mental markers on a graph instead of letters?

Or is there something more to this than anyone has ever seen before?

If we could find out what the true shape of equal and odd numbers are what would we discover?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

(x-5)1/2+5=2 what is a possible solution?