Answer:
-7
Step-by-step explanation:
-1.68j+1.24=13
-1.68j=13-1.24
-1.68j=11.76
j=11.76/-1.68
j=-7
Answer:
C.
Step-by-step explanation:
To find the rectangular prisms' volume, we should multiply, each one's width,length and height.
Meaning the formula is :

Let's plug the values and then subtract:
Divide all package numbers by 2:
30 / 2 = 15 Rulers
12 / 2 = 6 Colored Penicils
4 / 2 = 2 Glue Sticks
2.
15 + 6 + 2 = 23