Answer:19,20,21 and 22
Step-by-step explanation: if this is for a test your welcome bud.
There are a total of 900 students at Molly’s school. 810 is 90% of 900. 90% of students did not wear a silly hat.
<span>240 <= 171 + x <= 270
and now subtract 171 from all and get
69 <= x <= 99
So any score from 69 to 99 will do.</span>
Answer:
800 in scientific notation
8 * 10²
