An angle measures 43°. Find the measure of its supplement and the measure of its complement

Can some one explain this i got sent this. is this a threat i’m scared

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

What is the slope of the line passing through the points (-5, 7) and (-3,5)?