GIVING BRAINLIEST. DUE TOMORROW. David's phone bill each month is $30. He is also charged $0.10 per GB of data he uses. If his phone bill in July was $42, how many GB of data did he use in July? I also need an equation representing the word problem, thanks.

Which system of linear inequalities is represented by the graph?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.