Answer:
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
From the question, the values of x, y and z are as follows.
x=15, y=3 and z= -2
Now, we are to find the value of the expression

we substitute the values of x, y and z into the expression and simplify




Therefore, value of

Answer:
c and f
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
The volume is proportional to length, so tripling the length multiplies the volume by 3.
The volume is proportional to width, so doubling the width multiplies the volume by 2.
Tina's new planter box is 3×2 = 6 times the volume of the original.