Question

Помогите решить задания №3 и № 10

Answer 1

$-10(-\frac{2}{9})+6+5.5(-\frac{2}{9})-8 =\\\\ \frac{20}{9} +6+\frac{11}{2}(-\frac{2}{9})-8 =\\\\ \frac{74}{9} + (-\frac{11}{9}) =\\\\ \frac{74}{9} -\frac{11}{9} = 7$