Help me with the question plzzz! Y varies directly with x. If y = 15 when x = -18, find y when x = 1.6.

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Witch represents the inverse of the function f(x)=1/4x-12

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?