√x< 4 a.20 b.12 c.2 d.-1 e.5. f. no solution

What does x = in this equation x+3+2x=x+5

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance