1) a company makes boxes of crackers that should weigh 213g. a
quality-control inspector randomly selects boxes to weigh. any box
that varies from the weight by more than 5g is sent back. what is the
range of allowable weights for a box of crackers?

The boxes can weight at most 5 grams less than the desired amount, so they can't be lighter than

grams

Similary, they can't weight more than 5 grams more than the desired amount, so they can't be heavier than

grams

So, the acceptable range is between 208 and 218.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

5 + 8 +7 + 4 + 0 +1 = 25

step-by-step explanation: