Starting at home, nadia traveled uphill to the grocery store for 30 minutes at just 4 mph. she then traveled back home along the same path downhill at a speed of 12 mph.
what is her average speed for the entire trip from home to the grocery store and back?

Adding and subtracting matricesfind the value of each variable. x = and y = would

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. what distance from city a is the point where the truck and the car will meet?

Write the function for the graph. (1.8) (0,4)