Graph t> -2 on a number line

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

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?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.