The number of hours required in each subject of a college preparatory core curriculum is represented by the circle graph. What percent of these hours is in Art and Math combined?

67.5%

32.5%

243%

117%

32.5%

Step-by-step explanation:

First find the total number of hours:

8 + 5 + 14 + 7 + 6 = 40

What percent of these hours is in Art and Math combined?

Maths = 7 hours

Art =  6 hours

7 + 6 = 13

Percentage = value/total * 100

13/40 * 100 = 32.5%

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13