For every black car sold at the Finest Car Sales, 4 red ones are sold. A total of 30 red cars and black cars were sold last month. How many cars of each color were sold?

Me because some of question i don’t understand

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that