Answer:

Step-by-step explanation:
Let
x------> Lamar's collection of cards
The algebraic expression of the phrase "Lamar decreased his collection of cards by seven" is equal to subtract the number seven from Lamar's collection of cards
so

Answer:
Hope you get the right answer
Step-by-step explanation:
Answer:
The formula for the volume of a sphere is:
Sphere Volume = 4/3 • π • r^3
Sphere Volume = 4/3 • π • 7^3
Sphere Volume = 4/3 • π • 343
Sphere Volume = 1,436.7550402417 cubic inches
Step-by-step explanation:
Answer:abcd
Step-by-step explanation:
10x2 +7x -12=15
-7x. -7
x=8