Jack's grandfather gave his parents a check to start a college savings account. they opened the account with the check, and then deposited $175 per month since. after 5 years there is $13,000 in the account. (this doesn't include intrest) write an equation to model the account balance, y, after x years. what was the original check amount from jack's grandfather?

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.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.