Question

Help me with this pie chart [urgent i guess]​

Answer 1

(b) 40 * $\frac{72}{360}$ = 40 * $\frac{1}{5}$ = 8

(c) 360 - (72 + 144 + 81) = 360 - 297 = 63

(d) $\frac{144}{360}$ = $\frac{2}{5}$