20 X 0.2(1/5 in decimal form) = 4
20 X 0.375(3/8 in decimal form) = 7.50
20 X 0.285714285714(2/7 in decimal form) = 5.71
4 + 7.50 + 5.71 = 17.21
20 - 17.21 = ?
he had $2.71 left
hope this helps :)
A would have the line of <span> symmetry</span> because if you cut it down wards you would have 2 of the same sides
best of luck in your math class
Sincerly jaydon boyle
10 hours, none more, none less
Standard deviation is the square root of the variance.
To find the variance from the standard deviation, raise it to the 2nd power:
Standard deviation = 4
Variance = 4^2 = 4x4 = 16.
