In the mystery number problem below, Rosa identified the missing number as 4. Is she correct? How can you check her answer? (pls help) (pls no link i need to know its real and not a scam)

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4