Anton bought a picnic cooler. his total bill, with tax, was $7.95. he paid 6 percent sales tax. how much did he pay for the cooler alone without the tax? the cost of an item is 100% of its price. what number goes in place of ?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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.

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?