Atotal of 600 advertisements were sold for a certain magazine. if 20 percent of the first 200 sold were in color, 40 percent of the next 300 sold were in color, and 80 percent of the last 100 sold were in color, what percent of the 600 advertisements were in color?

40%

Step-by-step explanation:

Given : The total of 600 advertisements were sold for a certain magazine.  

If 20 percent of the first 200 sold were in color, 40 percent of the next 300 sold were in color, and 80 percent of the last 100 sold were in color.

Now, the number of advertisement in color = 20% of 200 + 40% of 300+ 80% of 100

Now, the percent of the 600 advertisements were in color is given by :-

Hence, the  percent of the 600 advertisements were in color= 40%

3x3 = 9 and 2x2 = 4

step-by-step explanation:

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d