Problem ishaan is 2 times as old as christopher. 35 years ago, ishaan was 7 times as old as christopher. how old is ishaan now?

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

How many $20 bills do you need to have to make $280