Aball is dropped from a height of 30 feet and each time it hits the ground it bounces 0.75 of the previous height. what is the height of the ball after it makes its third bounce? round to the nearest hundredth of a foot. a) 0.47 feet b) 9.49 feet c) 12.66 feet d) 16.88 feet

The triangles are similar. what is the value of x? x=

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

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.