How many times does 3 go into 42

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie

If 20% of a number is 35, what is 50% of that number?