∠A and \angle B∠B are supplementary angles. If m\angle A=(x-16)^{\circ}∠A=(x−16) and m\angle B=(3x+28)^{\circ}∠B=(3x+28), then find the measure of \angle ∠A

The graph below could be the graph of which exponential function?

Can someone tell me if this is perpendicular? !

Agroup of randomly selected members of the foodies food club were asked to pick their favorite type of food. the bar graph below shows the results of the survey. there are 244 members in the foodies.