<h2>
Answer: B. 3.99 ⋅ 10^−6</h2>
Step-by-step explanation:
The number that is the smallest has the smallest power of 10.
If we convert the possible answers to ordinary numbers, it will be clearer.
A. 4.4 ⋅ 10^−5 = 0.000044
B. 3.99 ⋅ 10^−6 = 0.00000399
C. 2.6 ⋅ 10^2 = 0.026
D. 1.85 ⋅ 10^3 = 0.00185
X is sugar
y is butter
z is total money
$0.80x + $1.25y = z
the total money spent if the Baker bought 6 pounds of butter and 20 pounds of sugar would be $23.50.
Assuming you threw away the 20 that spoiled, you'd have 6 left, but you know, you could have kept them, it's very possible that you have 26 left.
Okay dso if she got 15 points for 12 days then you would multiply them (or just add 15+15+15+15 and so on but multiplying is easier) then you are going to add 55 because of the thirteenth day.
15(12)=180
180+55=235 is how many you have.
now you are going to subtract 500 from that number to see how many more you need. :)
The answer is c. v=2.4r+154. v is the dependent variable, and r is the independent variable. From the equation above, if we increase r by 1 unit, v will increase by 2.4 (154 doesn't affect because it's always a constant). The unit of r is %, while the unit of v is thousand, therefore if we increase interest rate by 1%, the median house value increases by 2.4 thousand.
