Naomi has earned $54 mowing lawns the past 2 days. she worded 21/2 hours yesterday and 41/4 hourse today. if naomi is paid the same amount for every hour she works, how much does she earn per hour to mow lawns?

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.