In a group of students 30 read mathematics, 22 read statistics, 14 read mathematics only 8 read economics only 6 read mathematics and statistics only 2 read mathematics and economics only and 8 read none of these subjects. find how many students are there ina group. how many

Which of the following is true for the relation f(x)=2x^2+1

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

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?