I really need help!! A scuba diver is swimming at the depth shown, and then swims 0.5 foot toward surface every 3 seconds. What is the location of the scuba diver, relative to the surface, after 15 seconds?​

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220