A straight line is = to 180 degrees (straight angle) so the formula would be X+89=180 subtract the 89 from both sides and you get x=91 so the other angle is 91 degrees
The rule of exponential multiplication is (a^x)*(a^y)=a^(x+y) using this with your expression, we can do (10^1)*(10^3)*(10^2)=10^(1+3+2)=10^6 Final answer: 10^6 or 1 million Hope I helped :)
