Find the property the equation illustrates -5 + (8+10) = (-5+8) +10

Which solid has two triangular bases and three lateral faces, each in the shape of a rectangle? triangular prism triangular pyramid rectangular prism rectangular pyramid

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Asinusoidal function whose frequency is 1/6pi