Answer:
2.82843
Step-by-step explanation:
it was what i got
I believe that they typo meant 300 fossils of which 21% are snail shells.
Since % means per one hundred...
300(21/100)=63
Elmer has 63 fossilized snail shells.
Answer: 30 students per bus
Step-by-step explanation: 99-9=90
90/3=30
30 students per bus
Y = m x + b , where m is the slope. The slope is the rise over the run or the change in x ( rooms cleaned ) over the change in y ( cost ).
125 = m * 1 + b
175 = m * 2 + b
-----------------------
b = 125 - m
175 = 2 m + 125 - m
m = 175 - 125
m = 50 ( the rate of change ), b = 75
The formula is: y = 50 x + 75
It means that the starting cost will be $75 and that for every room cleaned, the cost will rise for $50.
Answer:

Step-by-step explanation:
hello,
by definition we can write

as 5,-4,1 are the zeroes
now we have to write it in the standard form, let's do it

hope this helps