Q9) When working on a problem recently, Mya saw the polynomial expression 4 - 3x”. She decided to re - write it as - 3x + 4. Which property of real numbers justifies (allows) Mya's action? Explain your
answer.

Commutative Property of Addition

a + b = b + a

which says

"commute = to get up and move to a new location : switch places"

4-3x = -3x +4

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.