Use the distributive property to expand this expression: 5(b + 4) =

b = -4

Step-by-step explanation:

5(b + 4) becomes 5b + 20

(subtract) move the 20 to the other side of the equal sign, you will get 5b = -20

to get b by itself, divide both sides by 5, you will get b = -4

we don't have enough info to solve this

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870