The circle graph shows the sales of different colors of sweaters at a casual clothing store. In all, 400 sweaters were sold. How many black sweaters were sold?
SWEATER SALES
19%
Green
25
115 Back
Red
0 A 11
B. 44
0 0 0 0
0 C 51
D. 58

7

step-by-step explanation:

the answer would be 7

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

step-by-step explanation:

a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 2 times the age of the child?

******************

this needs to be the answer format, or else your answer is incomplete.

if the number of years is x, then the equation is

in __ years