This would convert to 22,200 words an hour.
The first 6 is in the hundreds and the other six is in the thousands
Answer:
a21 = -61
Step-by-step explanation:


(subtract to eliminate a₁)
9 = -3d
d = -3
-19 = a₁ + (6)(-3)
-1 = a
a21 = -1 + (21 - 1)(-3)
= -61
Answer:
z = -4 1/2
Step-by-step explanation:
1. First change the mixed fractions to improper fractions so it's easier

2. Simplify

3. Cross multiply

4. Simplify again (distributive property)

5. Distributive property


6. Subtract 32 from both sides

7. Simplify

8. Subtract 80 from both sides

9. Simplify

10. Divide both sides by 16

11. Simplify

Sorry if it was too long but hope this helps! :)
And also try using symbolab cuz it gives step by step explanations it's really good!