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

6............................................
Answer:
896
Step-by-step explanation:
.There are 128 pens in 1 full box. Multiply 128 with 7 (as you are trying to find the total for 7 boxes).
128 x 7 = 896
There is a total of 896 pens in 7 box's
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Answer:
ask google
Step-by-step explanation:
duh