Angles l and m are supplementary. what is the sum of their measures? the sum of the measures of angles l and m is

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

The function models the number of accidents per 50 million miles driven as a function

What are the domain and range of the function f(x)=2^x+1