Ashley used 14 centimeters of tape to wrap 7 presents.
how much tape will ashley need in all if she has to wrap 9 presents? solve using unit rates.

18cm

Step-by-step explanation:

If 14cm is used for 7wraps. Then

For 1wraps she uses 14/7 = 2cm

So, for 9wraps she will use: 9 × 2cm

= 18cm

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints