Susan has $350 in her checking account she writes checks for $45.70 for flowers $78.53 for books and $46.98 for cds how much money is left in her checking account

With finding limits of multi variable !

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

What is r i 4.5+10r=-6.5 with work pls