Lets start from scratch.
45 is the number of money she spent that means that right side of = sign is 45
let m represents number of roses.
we can write:
t*$1+ m*$2 = $45
Since she bought 3 more tulips than roses that means that m = t - 3
when we express m we get:
t + 2*(t-3) = 45
<span>the answer is B.
-Lampa20</span>
a.

Looking up 1.4 in the standard normal table,

Answer: 8.1%
b.
The standard deviation of the average is the standard deviation of an individual sample divided by the square root of n.


Answer: 76.7%
c.
We know the data is normal so so is its sum and average. The standard deviation of the individual observations is given so the standard deviation of an average of n is easily calculated. We use t tests when we're estimating the standard deviation from the data.
Answer: The answer. is C
Step-by-step explanation:
The crate weighs 13.5 pounds