Which phrase can be used to represent the inequality 6.5x+1.5< or equal 21

Which graph represents the function g(x) = |x + 4| + 2?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry